Latin declension is the set of patterns according to which Latin words are declined, or have their endings altered to show grammatical case and gender. Nouns, pronouns, and adjectives are declined (verbs are conjugated), and a given pattern is called a declension. There are five declensions, which are numbered and grouped by ending and grammatical gender. For simple declension paradigms, visit the Wiktionary appendices: first declension, second declension, third declension, fourth declension, fifth declension. Each noun follows one of the five declensions, but some irregular nouns have exceptions.
Adjectives are of two kinds: those like bonus, bona, bonum 'good' belong to the first and second declensions, using first-declension endings for the feminine, and second-declension for masculine and neuter. Other adjectives such as celer, celeris, celere belong to the third declension. There are no fourth- or fifth-declension adjectives.
Pronouns are also of two kinds, the personal pronouns such as ego 'I' and tū 'you (sg.)', which have their own irregular declension, and the third-person pronouns such as hic 'this' and ille 'that' which can generally be used either as pronouns or adjectivally. These latter decline in a similar way to the first and second noun declensions, but there are differences; for example the genitive singular ends in -īus or -ius instead of -ī or -ae.
The cardinal numbers ūnus 'one', duo 'two', and trēs 'three' also have their own declensions (ūnus has genitive -īus like a pronoun), and there are also numeral adjectives such as bīnī 'a pair, two each', which decline like ordinary adjectives.
A complete Latin noun declension consists of up to seven grammatical cases: nominative, vocative, accusative, genitive, dative, ablative and locative. However, the locative is limited to few nouns: generally names of cities, small islands and a few other words.
The case names are often abbreviated to the first three letters.
The Latin cases have usually been given in the order Nom–Voc–Acc–Gen–Dat–Abl(–Loc) in Britain and many Commonwealth countries since the publication of Benjamin Hall Kennedy's Latin Primer (1866). This order reflects the tendencies of different cases to share similar endings (see below). For a discussion of other sequences taught elsewhere, see below.
However, some didactic approaches or schools teach it in the order Nom–Acc–Gen–Dat–Voc–Abl or Nom–Acc–Gen–Dat–Abl–Voc, the order also used before the Latin Primer by Benjamin Hall Kennedy. This order is used in The School and University Eton Latin Grammar (1861), with the ablative case always cited last, and a similar one is used in grammars of Ancient Greek (except without the ablative case, which does not occur in Greek), and has been retained by some modern didactic approaches to allow comparison of Latin and Greek.
Meanings and functions of the various casesEdit
- The nominative case marks the subject of a statement and denotes the person or object that performs the action of the verb in the sentence. For example, "Mary is going to the store" ("Marīa tabernam vādit") or "Mary is my sister" ("Marīa est soror mea"). It is also used for the predicate: "Mary is my sister" ("Marīa est soror mea"). The nominative singular (for adjectives, masculine nominative singular) is used as the reference form of the word.
- The vocative case is used to address someone or something in direct speech. In English, this function is expressed by intonation or punctuation: "Mary, are you going to the store?" or "Mary!" In most declensions, the vocative singular form is identical to the nominative singular form; for example, to say "sailor!" the noun nauta has the vocative form nauta. There are a few exceptions. For the masculine singular second declension nouns, -us and -ius become -e and -ī, respectively. For example, Brutus becomes Brute (English "Brutus!"). Similarly, Vergilius becomes Vergilī (English "Virgil!"). However, nouns may preserve as -us and -ius in presence of imperative verbs (Venī huc, Brutus; or Dīc nōbīs fabulam, Virgilius) Finally, in Greek masculine first declension names Aenēās becomes Aenēā (English "Aeneas!"). In the plural the vocative is always identical to the nominative. In this article, it is assumed the nominative and vocative cases always merge, unless if mentioned on the paradigm tables.
- The accusative case marks the direct object of a verb. It also has various other functions, e.g., it is governed by some prepositions. It can be used to express motion towards something, with or without a preposition.
- The genitive case expresses possession, measurement, or source. Many of its uses correspond in English to uses of the preposition 'of', and in some situations to the English possessive.
- The dative case marks the recipient of an action, the indirect object of a verb. In English, the prepositions to and for frequently correspond to this case, though there are also many uses of these prepositions which do not correspond to the dative case.
- The ablative case expresses separation, indirection, or the means by which an action is performed. In English, the prepositions by, with, from, in, and on are most commonly used to indicate these meanings.
- The locative case expresses the place where an action is performed. In early Latin the locative case had extensive use, but in Classical Latin the locative case was very rarely used, applying only to the names of cities and small islands and to a few other isolated words. For this purpose, the Romans considered all the islands they would know (in most of cases, European islands) to be small except for Sicily, Sardinia, Corsica, Crete, Cyprus, Britain and Ireland; in general, small island cities like Ithaca and Thēra would be the only ones using the locative case. Much of the case's function had been absorbed into the ablative. In the first and second declension singular, the locative is identical to the genitive singular, and in the third declension singular it is identical to the dative singular. For plural nouns of all declensions, the locative is also identical to the ablative. The few fourth- and fifth-declension place names would also use the ablative form for the locative case. However, a few nouns use the locative instead of a preposition: bellum → bellī 'at war'; domus → domī 'at home'; rūs → rūrī 'in the country'; humus → humī 'on the ground'; mīlitia → mīlitiae 'in military service, in the field'; focus → focī 'at the hearth', 'at the center of the community'. In archaic times, the locative singular of third declension nouns was interchangeable between the ablative and dative but, in the Augustan period, the use of the dative became fixed. The locative cannot express being located at multiple locations; plural forms only exist because certain proper names such as Athēnae happen to be plural (pluralia tantum). "[He/She/It] is at home" can be expressed by "Est domī" using the locative, but "They are at their (individual and separate) homes" cannot be expressed by the locative (Sunt in domibus suī). Adjenctives do not have the locative form case .
Syncretism, where one form in a paradigm shares the ending of another form in the paradigm, is common in Latin. The following are the most notable patterns of syncretism:
- For pure Latin neuter nouns, the nominative singular, vocative singular, and accusative singular are identical; and the nominative plural, vocative plural, and accusative plural all end in -a (both of these features are inherited from Proto-Indo-European, and so are not true syncretism as the case endings were never attested as separate in the first place).
- The vocative form is always the same as the nominative in the plural, and usually the same as the nominative in the singular except for second-declension masculine nouns ending in -us and a few nouns of Greek origin. For example, the vocative of the first-declension Aenēās is Aenēā.
- The genitive singular is the same as the nominative plural in first-, second-, and fourth-declension masculine and feminine pure Latin nouns.
- The dative singular is the same as the genitive singular in first- and fifth-declension pure Latin nouns.
- The dative is always the same as the ablative in the plural, and in the singular in the second declension, the third-declension full i-stems (i.e. neuter i-stems, adjectives), and fourth-declension neuters.
- The dative, ablative, and locative are always identical in the plural.
- The locative is identical to the ablative in the fourth and fifth declensions.
History of casesEdit
Old Latin had essentially two patterns of endings. One pattern was shared by the first and second declensions, which derived from the Proto-Indo-European thematic declension. The other pattern was used by the third, fourth and fifth declensions, and derived from the athematic PIE declension.
There are two principal parts for Latin nouns: the nominative singular and the genitive singular. Each declension can be unequivocally identified by the ending of the genitive singular (-ae, -i, -is, -ūs, -ei). The stem of the noun can be identified by the form of the genitive singular as well.
There are five declensions for Latin nouns:
First declension (a stems)Edit
Nouns of this declension usually end in -a in the nominative singular and are mostly feminine, e.g. via, viae f. ('road') and aqua, aquae f. ('water'). There is a small class of masculine exceptions generally referring to occupations, e.g. poēta, poētae m. ('poet'), agricola, agricolae m. ('farmer') and nauta, nautae m. ('sailor').
|First declension paradigm|
The locative endings for the first declension are -ae (singular) and -īs (plural), similar to the genitive singular and ablative plural, as in mīlitiae 'in war' and Athēnīs 'at Athens'.
First declension Greek nounsEdit
The first declension also includes three types of Greek loanwords, derived from Ancient Greek's Alpha Declension. They are declined irregularly in the singular, but are sometimes treated as if they were native Latin nouns, e.g. nominative athlēta ('athlete') instead of the original athlētēs. Archaic (Homeric) first declension Greek nouns and adjectives had been formed in exactly the same way as in Latin: nephelēgeréta Zeus ('Zeus the cloud-gatherer') had in classical Greek become nephelēgerétēs.
For full paradigm tables and more detailed information, see the Wiktionary appendix First declension.
Second declension (o stems)Edit
The second declension is a large group of nouns consisting of mostly masculine nouns like equus, equī ('horse') and puer, puerī ('boy') and neuter nouns like castellum, castellī ('fort'). There are several small groups of feminine exceptions, including names of gemstones, plants, trees, and some towns and cities.
In the nominative singular, most masculine nouns consist of the stem and the ending -us, although some end in -er, which is not necessarily attached to the complete stem. Neuter nouns generally have a nominative singular consisting of the stem and the ending -um. However, every second-declension noun has the ending -ī attached as a suffix to the root of the noun in the genitive singular form. The predominant letter in the ending forms of this declension is o.
|Second declension paradigm|
The locative singular ending for the second declension was -ī, like the genitive singular, as in Corinthī "at Corinth". The locative plural ending for the second declension was -īs, like the ablative plural, as in Philippīs "at Philippi".
Second-declension -ius and -ium nounsEdit
Nouns ending in -ius and -ium have a genitive singular in -ī in earlier Latin, which was regularized to -iī in the later language. Masculine nouns in -ius have a vocative singular in -ī at all stages. These forms in -ī are stressed on the same syllable as the nominative singular, sometimes in violation of the usual Latin stress rule. For example, the genitive and vocative singular Vergilī (from Vergilius) is pronounced Vergílī, with stress on the penult, even though it is short.. In Old Latin, however, the vocative was declined regularly, using -ie instead, e.g. fīlie "[Oh] son", archaic vocative of fīlius.
There is no contraction of -iī(s) in plural forms and in the locative.
aid, help n.
In the older language, nouns ending with -vus, -quus and -vum take o rather than u in the nominative and accusative singular. For example, servus, servī ('slave') could be servos, accusative servom.
Second-declension -r nounsEdit
Some masculine nouns of the second declension end in -er or -ir in the nominative singular. For such nouns, the genitive singular must be learned to see if the e is dropped. For example, socer, socerī ('father-in-law') keeps its e. However, the noun magister, magistrī ('teacher') drops its e in the genitive singular. Nouns with -ir in the nominative singular, such as triumvir, never drop the i.
The declension of second-declension -r nouns is identical to that of the regular second declension, being the vocative suffix -e optional.
For declension tables of second-declension nouns, see the corresponding Wiktionary appendix.
Second-declension Greek nounsEdit
The second declension contains two types of masculine Greek nouns and one form of neuter Greek noun. These nouns are irregular only in the singular, as are their first-declension counterparts. Greek nouns in the second declension are derived from the Omicron declension.
Some Greek nouns may also be declined as normal Latin nouns. For example, theātron can appear as theātrum.
In poetry, -um may substitute -ōrum as the genitive plural ending.
The Latin word vīrus (the ī indicates a long i) means "1. slimy liquid, slime; 2. poison, venom", denoting the venom of a snake. This Latin word is probably related to the Greek ἰός (ios) meaning "venom" or "rust" and the Sanskrit word विषम् viṣam meaning "toxic, poison".
There is no known plural for this word in Classical Latin. It is unclear how a plural might have been formed under Latin grammar in ancient times if the word had acquired a meaning requiring a plural form. In Latin, vīrus is generally regarded as a neuter of the second declension, but neuter second declension nouns ending in -us (rather than -um) are rare enough that inferring rules is difficult. (One of the rare attested plurals, pelage as a plural of pelagus, is borrowed from Greek, so does not give guidance for virus.) Plural neuter nouns of other declensions always end in -a (in the nominative, accusative and vocative).
poison, venom, virus n.
- antique, heteroclitic: vīrus
If vīrus were a masculine second declension term like alumnus, it would be correct to use vīrī as its plural. However, it is neuter.
There does exist a Latin word virī, meaning "men" (the plural of vir, a second declension masculine noun), but it has a short i in the first syllable.
The form vīriī is impossible as a plural of vīrus, since we only find the ending -iī in the plural form of masculine and feminine words ending in -ius. For instance, radius is pluralized by removing -us, to isolate the stem radi-, and then adding the plural suffix -ī. Thus the -iī ending of the resulting word radiī is not a suffix: it is simply the consequence of adding the actual suffix ī to a stem that has an i as its last letter. Vīriī would be the plural form of the putative, nonexistent word vīrius.
Third declension (i and consonant stems)Edit
The third declension is the largest group of nouns. The nominative singular of these nouns may end in -a,-e, -ī, -ō, -y, -c, -l, -n, -r, -s, -t, or -x. This group of nouns includes masculine, neuter, and feminine nouns. Examples are flūmen, flūminis n. ('river'), flōs, flōris m. ('flower'), and pāx, pācis f. ('peace'). Each noun has the ending -is as a suffix attached to the root of the noun in the genitive singular form. Masculine, feminine and neuter nouns each have their own special nominative singular endings. For instance, many masculine nouns end in -or (amor, amōris, 'love'). Many feminine nouns end in -īx (phoenīx, phoenīcis, 'phoenix'), and many neuter nouns end in -us with an r stem in the oblique cases (onus, oneris 'burden'; tempus, temporis 'time').
|Third declension paradigm|
(i and consonant stems)
- The nominative singular is formed in one of four ways: with -s, with no ending, or by one of these two with a different stem from the oblique cases. The same is true of other forms that are the same as the nominative singular: the vocative singular and the neuter accusative singular.
- The nominative and accusative of neuter nouns are always identical. It should not be assumed that -en is always the appropriate ending, as it might appear above.
Third declension i-stem nounsEdit
The third declension also has a set of nouns that are declined differently. They are called i-stems. i-stems are broken into two subcategories: pure and mixed. Pure i-stems are indicated by the parisyllabic rule or special neuter endings. Mixed i-stems are indicated by the double consonant rule.
- Masculine and feminine
- Parisyllabic rule: Some masculine and feminine third-declension i-stem nouns have the same number of syllables in the genitive as they do in the nominative. For example: amnis, amnis ('stream'). The nominative ends in -is.
- Double consonant rule: The rest of the masculine and feminine third-declension i-stem nouns have two consonants before the -is in the genitive singular. For example: pars, partis ('part').
- Special neuter ending: Neuter third-declension i-stems have no rule. However, all of them end in -al, -ar or -e. For example: animal, animālis ('animal'); cochlear, cochleāris ('spoon'); mare, maris ('sea').
Pure i-stems may exhibit peculiar endings in both singular and plural. Mixed i-stems employ normal (consonant) 3rd declension endings in the singular but i-stem endings in the plural.
|Third declension paradigm|
stream, torrent m. (pure)
part, piece f. (mixed)
animal, living being n. (pure)
|Parisyllabic rule||Double consonant rule||Special neuter ending|
- The nominative singular is formed in one of four ways: with -s, with no ending, or by one of these two with a different stem from the oblique cases. The same is true of other forms that are the same as the nominative singular: the vocative singular and the neuter accusative singular.
The rules for determining i-stems from non-i-stems and mixed i-stems should be thought of more as guidelines than rules: even among the Romans themselves, the categorization of a third-declension word as an i-stem or non-i-stem was quite fluid. The result is that many words that should be i-stems according to the parisyllabic and consonant stem rules actually are not, such as canis ('dog') or iuvenis ('youth'). By the parisyllabic rule, canis should be a masculine i-stem and thus differ from the non-i-stems by having an extra -i- in the plural genitive form: *canium. In reality, the plural genitive of canis is canum, the form of a non-i-stem. This fluidity even in Roman times results in much more uncertainty in Medieval Latin, as scholars were trying to imitate what was fluid to begin with.
In the third declension, there are four irregular nouns.
force, power f.
swine, pig, hog m.f.
ox, bullock m.f.
|Iuppiter, Iovis |
- Here ō or ū come from Old Latin ou. Thus bō-/bū- and Iū- before consonant endings are alternate developments of the bov- and Iov- before vowel endings. The double pp in the preferred form Iuppiter 'Father Jove' is assimilated from the etymological form Iūs piter. i is weakened from a in pater (Allen and Greenough, sect. 79 b).
- Genitive and dative cases are seldom used.
Fourth declension (u stems)Edit
The fourth declension is a group of nouns consisting of mostly masculine words such as fluctus, fluctūs m. ('wave') and portus, portūs m. ('port') with a few feminine exceptions, including manus, manūs f. ('hand'). The fourth declension also includes several neuter nouns including genū, genūs n. ('knee'). Each noun has the ending -ūs as a suffix attached to the root of the noun in the genitive singular form. The predominant letter in the ending forms of this declension is u, but the declension is otherwise very similar to the third-declension i stems.
|Fourth declension paradigm|
|-us ending nouns||-ū ending nouns|
port, haven, harbor m.
In the dative and ablative plural, -ibus is sometimes replaced with -ubus. This is so for only a few nouns, such as artūs pl., ('limbs').
Domus ('home') is declined like a full fourth-declension noun, and also like a second-declension noun, except in the dative and ablative plural, which are always domibus. Its locative case is domī.
|domus, domūs||domus, domī|
|house, home f.|
|as in fourth declension||as in second declension|
Fifth declension (e stems)Edit
The fifth declension is a small group of nouns consisting of mostly feminine nouns like rēs, reī f. ('affair, matter, thing') and diēs, diēī m. ('day'; but f. in names of days). Each noun has either the ending -ēī or -eī as a suffix attached to the root of the noun in the genitive singular form.
|Fifth declension paradigm|
|-iēs ending nouns||-ēs ending nouns|
day m., f.
Nouns ending in -iēs have long ēī in the dative and genitive, while nouns ending in a consonant + -ēs have short eī in these cases.
The locative ending of the fifth declension was -ē (singular only), identical to the ablative singular, as in hodiē ('today').
The locative case expresses the place where an action is performed. In early Latin the locative case had extensive use, but in Classical Latin the locative case was very rarely used, applying only to the names of cities and small islands and to a few other isolated words. For this purpose, the Romans considered all the islands they would know (in most of cases, European islands) to be small except for Sicily, Sardinia, Corsica, Crete, Cyprus, Britain and Ireland; in general, small island cities like Ithaca and Thēra would be the only ones using the locative case. Much of the case's function had been absorbed into the ablative. In the first and second declension singular, the locative is identical to the genitive singular, and in the third declension singular it is identical to the dative singular. For plural nouns of all declensions, the locative is also identical to the ablative. The few fourth- and fifth-declension place names would also use the ablative form for the locative case. However, a few nouns use the locative instead of a preposition: bellum → bellī 'at war'; domus → domī 'at home'; rūs → rūrī 'in the country'; humus → humī 'on the ground'; mīlitia → mīlitiae 'in military service, in the field'; focus → focī 'at the hearth', 'at the center of the community'. In archaic times, the locative singular of third declension nouns was interchangeable between the ablative and dative but, in the Augustan period, the use of the dative became fixed. The locative cannot express being located at multiple locations; plural forms only exist because certain proper names such as Athēnae happen to be plural (pluralia tantum). "[He/She/It] is at home" can be expressed by "Est domī" using the locative, but "They are at their (individual and separate) homes" cannot be expressed by the locative (Sunt in domibus suī). Adjenctives do not have the locative case Adjenctives do not have the locative form case ..
|Locative case by declension||Comments|
|1st declension||Rōmae||-ae||Athēnīs||-īs||In singular same as genitive. |
In plural, same as ablative.
|-ī, -e||Trallibus||-ibus||Same as dative and ablative.|
|4th declension||portū||-ū||Same as ablative.|
|5th declension||diē||-ē||Same as ablative.|
The first and second persons are irregular, and both pronouns are indeclinable for gender; and the third person reflexive pronoun sē, suī always refers back to the subject, regardless of whether the subject is singular or plural.
|First Person||Second Person||Third Person|
himself, herself, itself,
The genitive forms meī, tuī, nostrī, vestrī, suī are used as complements in certain grammatical constructions, whereas nostrum, vestrum are used with a partitive meaning ('[one] of us', '[one] of you'). To express possession, the possessive pronouns (essentially adjectives) meus, tuus, noster, vester are used, declined in the first and second declensions to agree in number and case with the thing possessed, e.g. pater meus 'my father', māter mea 'my mother'. The vocative singular masculine of meus is mī: mī Attice 'my dear Atticus'.
Usually, to show the ablative of accompaniment, cum would be added to the ablative form. However, with personal pronouns (first and second person), the reflexive and the interrogative, -cum is added onto the end of the ablative form. That is: mēcum 'with me', nōbīscum 'with us', tēcum 'with you', vōbīscum, sēcum and quōcum (sometimes quīcum).
In accusative case, the forms mēmē and tētē exist as emphatic, but they are not widely used.
When 'his' or 'her' refers to someone else, not the subject, the genitive pronoun eius 'of him' is used instead of suus:
When one sentence is embedded inside another with a different subject, sē and suus can refer to either subject:
- Patres conscripti ... legatos in Bithyniam miserunt qui ab rege peterent, ne inimicissimum suum secum haberet sibique dederet. (Nepos)
- "The senators ... sent ambassadors to Bithynia, who were to ask the king not to keep their greatest enemy with him but hand him over to them."
For the third-person pronoun is 'he', see below.
Demonstrative pronouns and adjectivesEdit
Relative, demonstrative and indefinite pronouns are generally declined like first and second declension adjectives, with the following differences:
- the nominatives are often irregular
- the genitive singular ends in -īus rather than -ae or -ī.
- the dative singular ends in -ī: rather than -ae or -ō.
These differences characterize the pronominal declension, and a few special adjectives (tōtus 'whole', sōlus 'alone', ūnus 'one', nūllus 'no', alius 'another', alter 'another [of two]', etc.) are also declined according to this pattern.
All demonstrative, relative, and indefinite pronouns in Latin can also be used adjectivally, with some small differences; for example in the interrogative pronoun, quis 'who?' and quid 'what?' are usually used for the pronominal form, quī and quod 'which?' for the adjectival form.
Third person pronounEdit
|is, ea, id
he, she, it
|eī, eae, ea|
This pronoun is also often used adjectivally, e.g. is homo 'that man', ea pecunia 'that money'. It has no possessive adjective; the genitive is used instead: pater eius 'his/her father'; pater eōrum 'their father'.
Declension of īdemEdit
|īdem, eadem, idem|
the same, same as
Other demonstrative pronounsEdit
|hic, haec, hoc
this, this one (proximal)
|ille, illa, illud
that, that one (distal)
|iste, ista, istud|
that of yours (medial)
Similar in declension is alius, alia, aliud 'another'.
|ipse, ipsa, ipsum|
himself, herself, itself
The interrogative pronouns are used strictly for asking questions. They are distinct from the relative pronoun and the interrogative adjective (which is declined like the relative pronoun). Interrogative pronouns rarely occur in the plural. The plural interrogative pronouns are the same as the plural relative pronouns.
|quī, quae, quod|
who, which, that
|qu-, c-, u-||reduplicated
|place to, whither||eō||quō||quōquō||aliquō|
|place from, whence||inde||unde||undecumque||alicunde|
First- and second-declension adjectivesEdit
First- and second-declension adjective are inflected in the masculine, the feminine and the neuter; the masculine form typically ends in -us (although some end in -er, see below), the feminine form ends in -a, and the neuter form ends in -um. Therefore, some adjectives are given like altus, alta, altum.
It is important noticing that -ius ending adjectives use the vocative -ie (ebrie, "[Oh] drunk man", vocative of ebrius), just as in Old Latin all -ius nouns did (fīlie, "[Oh] son", archaic vocative of fīlius).
|altus, alta, altum|
high, long, tall
|sōlitārius, sōlitāria, sōlitārium|
First- and second-declension -r adjectivesEdit
Some first- and second-declension adjectives' masculine form end in -er. As with second-declension -r nouns, some adjectives retain the e throughout inflection, and some omit it. Sacer, sacra, sacrum omits its e while miser, misera, miserum keeps it.
|miser, misera, miserum|
sad, poor, unhappy
|sacer, sacra, sacrum|
First and second declension pronominal adjectivesEdit
Nine first and second declension pronominal adjectives are irregular in the genitive and the dative in all genders. They can be remembered by using the mnemonic acronym ūnus nauta. They are:
- ūllus, ūlla, ūllum 'any';
- nūllus, nūlla, nūllum 'no, none';
- uter, utra, utrum 'which [of two], either';
- sōlus, sōla, sōlum 'sole, alone';
- neuter, neutra, neutrum 'neither';
- alius, alia, aliud (the genitive singular alīus is often replaced by aliēnus 'of another');
- ūnus, ūna, ūnum 'one';
- tōtus, tōta, tōtum 'whole';
- alter, altera, alterum 'other [of two]'.
|ūllus, ūlla, ūllum|
Third-declension adjectives are normally declined like third-declension i-stem nouns, except for the fact they usually have -ī rather than -e in the ablative singular (unlike i-stem nouns, in which only pure i-stems have -ī). Some adjectives, however, like the one-ending vetus, veteris ('old, aged'), have -e in the ablative singular, -um in the genitive plural, and -a in the nominative and accusative neuter plural.
Third-declension adjectives with one endingEdit
These have a single nominative ending for all genders, although as usual the endings for the other cases vary. As with nouns, a genitive is given for the purpose of showing the inflection.
terrible, mean, cruel
Third-declension adjectives with two endingsEdit
Third-declension adjectives that have two endings have one form for the masculine and feminine, and a separate form for the neuter. The ending for the masculine and feminine is -is, and the ending for the neuter is -e. It is not necessary to give the genitive, as it is the same as the nominative masculine singular.
Third-declension adjectives with three endingsEdit
Third-declension adjectives with three endings have three separate nominative forms for all three genders. Like third and second declension -r nouns, the masculine ends in -er. The feminine ends in -ris, and the neuter ends in -re. The genitive is the same as the nominative feminine singular.
|celer, celeris, celere|
swift, rapid, brash
|alacer, alacris, alacre|
lively, jovial, animated
Comparative and superlative forms of adjectivesEdit
As in English, adjectives have superlative and comparative forms. For regular first and second declension and third declension adjectives with one or two endings, the comparative is formed by adding -ior for the masculine and feminine, and -ius for the neuter to the stem. The genitives for both are formed by adding -iōris. Therefore, they are declined in the third declension, but they are not declined as i-stems. Superlatives are formed by adding -issimus, -issima, -issimum to the stem and are thus declined like first and second declension adjectives.
General pattern for comparativesEdit
higher, taller (comparative of altus)
Comparatives and superlatives with normal endingsEdit
|clārus, clāra, clārum ('clear, bright, famous')||clārior, clārius||clārissimus, clārissima, clārissimum|
|frīgidus, frīgida, frīgidum ('cold, chilly')||frīgidior, frīgidius||frīgidissimus, frīgidissima, frīgidissimum|
|pugnāx, pugnāx (pugnācis) ('pugnacious')||pugnācior, pugnācius||pugnācissimus, pugnācissima, pugnācissimum|
|benevolēns, benevolēns (benevolentis) ('kind, benevolent')||benevolentior, benevolentius||benevolentissimus, benevolentissima, benevolentissium|
|fortis, forte ('strong, robust')||fortior, fortius||fortissimus, fortissima, fortissimum|
|aequālis, aequāle ('equal, even')||aequālior, aequālius||aequālissimus, aequālissima, aequālissimum|
Comparatives and superlatives of -er adjectivesEdit
Adjectives (in the first and second as well as third declensions) that have masculine nominative singular forms ending in -er are slightly different. As with normal adjectives, the comparative is formed by adding -ior to the stem, but for the superlative, -rimus is added to the nominative masculine singular.
|pulcher, pulchra, pulchrum ('pretty, beautiful')||pulchrior, pulchrius||pulcherrimus, pulcherrima, pulcherrimum|
|sacer, sacra, sacrum ('sacred, holy')||sacrior, sacrius||sacerrimus, sacerrima, sacerrimum|
|tener, tenera, tenerum ('delicate, tender')||tenerior, tenerius||tenerrimus, tenerrima, tenerrimum|
|ācer, ācris, ācre ('sharp')||ācrior, ācrius||ācerrimus, ācerrima, ācerrimum|
|celeber, celebris, celebre ('celebrated, famous')||celebrior, celebrius||celeberrimus, celeberrima, celeberrimum|
|celer, celeris, celere ('quick, fast')||celerior, celerius||celerrimus, celerrima, celerrimum|
Comparatives and superlatives of -lis adjectivesEdit
Some third declension adjectives with two endings in -lis in the masculine–feminine nominative singular have irregular superlative forms. The following are the only adjectives that do.
|facilis, facile ('easy')||facilior, facilius||facillimus, facillima, facillimum|
|difficilis, difficile ('hard, difficult')||difficilior, difficilius||difficillimus, difficillima, difficillimum|
|similis, simile ('similar, like)||similior, similius||simillimus, simillima, simillimum|
|dissimilis, dissimile ('unlike, dissimilar')||dissimilior, dissimilius||dissimillimus, dissimillima, dissimillimum|
|gracilis, gracile ('slender, slim')||gracilior, gracilius||gracillimus, gracillima, gracillimum|
|humilis, humile ('low, humble')||humilior, humilius||humillimus, humillima, humillimum|
Comparatives and superlatives of -eus/-ius adjectivesEdit
First and second declension adjectives that end in -eus or -ius are unusual in that they do not form the comparative and superlative by taking endings at all. Instead, magis ('more') and maximē ('most'), the comparative and superlative degrees of magnoperē ('much, greatly'), respectively, are used.
Many adjectives in -uus, except those in -quus or -guus, also follow this rule.
|idōneus, idōnea, idōneum ('suitable, fitting, proper')||magis idōneus||maximē idōneus|
|sōlitārius, sōlitāria, sōlitārium ('solitary, lonely')||magis sōlitārius||maximē sōlitārius|
|ebrius, ebria, ebrium ('drunk')||magis ebrius||maximē ebrius|
|meritōrius, meritōria, meritōrium ('meritorious')||magis meritōrius||maximē meritōrius|
|grāmineus, grāminea, grāmineum ('grassy')||magis grāmineus||maximē grāmineus|
|bellātōrius, bellātōria, bellātōrium ('warlike, bellicose')||magis bellātōrius||maximē bellātōrius|
|arduus, ardua, arduum ('lofty, steep')||magis arduus||maximē arduus|
Irregular comparatives and superlativesEdit
As in most languages, Latin has adjectives that have irregular comparatives and superlatives.
Declension of numeralsEdit
There are several different kinds of numeral words in Latin: the two most common are cardinal numerals and ordinal numerals. There are also several more rare numerals, e.g., distributive numerals and adverbial numerals.
All cardinal numerals are indeclinable, except ūnus ('one'), duo ('two'), trēs ('three'), plural hundreds ducentī ('two hundred'), trecentī ('three hundred') etc., and mīlle ('thousand'), which have cases and genders like adjectives. Ūnus, ūna, ūnum is declined like a first- and second-declension pronoun with -īus in the genitive, and -ī in the dative. Duo is declined irregularly, trēs is declined like a third-declension plural adjective, -centī ('hundred') numerals decline like first- and second-declension adjectives, and mille is invariable in the singular and declined like a third-declension i-stem neuter noun in the plural:
The existence of plural endings for ūnus might seem unnecessary; however, they are used with pluralia tantum nouns, e. g. ūna castra (one [military] camp), ūnae scālae (one ladder).
|ūnus, ūna, ūnum|
|duo, duae, duo|
|ambō, ambae, ambō|
The numeral centum ('one hundred') is indeclinable, but all the other hundred numerals are declinable.
|ducentī, ducentae, ducenta|
The word mīlle 'thousand' is a singular indeclinable adjective. However, its plural, mīlia, is a plural third-declension i-stem neuter noun. To write the phrase "four thousand horses" in Latin, the genitive is used: quattuor mīlia equōrum, literally, "four thousands of horses".
The rest of the numbers are indeclinable whether used as adjectives or as nouns.
For further information on the different sets of Latin numerals, see Latin numerals (linguistics).
Adverbs and their comparatives and superlativesEdit
Adverbs are not declined. However, adverbs must be formed if one wants to make an adjective into an adverb.
Adverbs from first- and second-declension adjectivesEdit
First and second declension adjectives' adverbs are formed by adding -ē onto their stems.
|clārus, clāra, clārum ('clear, famous')||clārē ('clearly, famously')|
|validus, valida, validum ('strong, robust')||validē ('strongly, robustly')|
|īnfīrmus, īnfīrma, īnfīrmum ('weak')||īnfīrmē ('weakly')|
|solidus, solida, solidum ('complete, firm')||solidē ('completely, firmly')|
|integer, integra, integrum ('whole, fresh')||integrē ('wholly, freshly')|
|līber, lībera, līberum ('free')||līberē ('freely')|
Adverbs from third declension adjectivesEdit
Typically, third declension adjectives' adverbs are formed by adding -iter to the stem. However, most third declension adjectives with one ending simply add -er to the stem.
|prūdēns, prūdēns (prūdentis) ('prudent')||prūdenter ('prudently')|
|audāx, audāx (audācis) ('bold')||audācter ('boldly')|
|virilis, virile ('courageous, spirited')||viriliter ('courageously, spiritedly')|
|salūbris, salūbre ('wholesome')||salūbriter ('wholesomely')|
Comparative and superlative of adverbsEdit
Adverbs' comparative forms are identical to the nominative neuter singular of the corresponding comparative adjective. Adverbs' superlative forms are simply formed by attaching the regular ending -ē to the corresponding superlative adjective. As with their corresponding adjectival forms, first and second declensions adjectives ending in -eus or -ius use magis and maximē as opposed to distinct endings.
|clārē ('clearly, famously')||clārius||clārissimē|
|solidē ('completely, firmly')||solidius||solidissimē|
|idōneē ('suitably, properly')||magis idōneē||maximē idōneē|
Irregular adverbs and their comparative and superlative formsEdit
As with adjectives, there are irregular adverbs with peculiar comparative and superlative forms.
|bene ('well')||melius ('better')||optimē ('best')|
|male ('badly, ill')||peius ('worse')||pessimē ('worst')|
|magnopere ('greatly')||magis ('more')||maximē ('most')|
|multum ('much, a lot')||plūs ('more')||plūrimum ('most')|
|parvum ('little')||minus ('less')||minimē ('least')|
|nēquiter ('worthlessly')||nēquius ('more worthlessly')||nēquissimē ('most worthlessly')|
|saepe ('often')||saepius ('more often')||saepissimē ('most often')|
|mātūrē ('seasonably, betimes')||mātūrius ('more seasonably')||māturrimē ('most seasonably')|
|prope ('near')||propius ('nearer')||proximē ('nearest, next')|
|nūper ('recently')||—||nūperrimē ('most recently, previously')|
|potis ('possible')||potius ('rather')||potissimē ('especially')|
|—||prius ('before, previously')||prīmō ('first')|
Peculiarities within declensionEdit
Irregularity in numberEdit
Some nouns are only used in the singular (singulare tantum) such as:
- materials, such as aurum ('gold') and aes ('copper, bronze')
- abstract nouns, such as celeritās ('speed') and scientia ('knowledge)
Some nouns are only used in the plural (plurale tantum) such as:
- many festivals, such as Saturnālia ('Saturnalia')
- castra ('camp') and arma ('arms')
- a few geographical names are plural such as Thēbae ('Thebes', both the Greek and the Egyptian cities)
Indeclinable nouns are nouns which only have one form in all cases (of the singular).
- fās ('fate, divine law')
- īnstar ('likeness')
- māne ('morning')
- nefās ('sin, abomination')
- nihil, nīl ('nothing, none')
- secus ('sex')
Heterogeneous nouns are nouns which vary in respect to gender.
- A few nouns in the second declension occur in both the neuter and masculine. However, their meanings remain the same.
- Some nouns are one gender in the singular, but become another gender in the plural. They may also change in meaning.
|balneum n. ('bath')||balneae f. or balnea n. ('bathhouse')|
|epulum n. ('feast, banquet')||epulae f. ('feast, banquet')|
|frēnum n. ('bridle, curb')||frēnī m. bridle, curb|
|iocus m. ('joke, jest')||ioca n. or ioci m. ('jokes, fun')|
|locus m. ('place, location')||loca n. ('region'); locī m. ('places in books, arguments')|
|rāstrum n. ('hoe, rake')||rāstrī m. ('hoes, rakes')|
Plurals with alternative meaningsEdit
|aedēs, aedis f. ('building, temple')||aedēs, aedium ('rooms, house')|
|auxilium, auxiliī n. ('help, aid')||auxilia, auxiliōrum ('auxiliary troops')|
|carcer, carceris m. ('prison, cell')||carcerēs, carcerum ('starting traps')|
|castrum, castrī n. ('fort, castle, fortress')||castra, castrōrum ('military camp, encampment')|
|cōpia, copiae f. ('plenty, much, abundance')||cōpiae, copiārum ('troops')|
|fortūna, fortūnae f. ('luck, chance')||fortūnae, fortūnārum ('wealth, fortune')|
|grātia, grātiae f. ('charm, favor')||grātiae, grātiārum ('thanks')|
|impedīmentum, impedīmentī m. ('impediment, hindrance')||impedīmenta, impedīmentōrum ('baggage, baggage train')|
|littera, litterae f. ('letter [alphabet]')||litterae, litterārum ('letter [message], epistle, scholarship, literature')|
|mōs, mōris m. ('habit, inclination')||mōrēs, mōrum m. ('morals, character')|
|opera, operae f. ('trouble, pains')||operae, operārum m. ('workmen')|
|*ops, opis f.[i] ('help')||opēs, opium ('resources, wealth')|
|pars, partis f. ('part, piece')||partēs, partium ('office, function')|
- Nominative and dative are not attested except as the name of the goddess Ops.
Order of the casesEdit
In modern textbooks of Latin, there is no single international standard for the sequence of cases.
This order reflects the syncretic trends of different cases to share similar endings. Usually the vocative and locative cases are omitted because they appear in the paradigm of only a few word classes and are dealt with separately. This makes the paradigm appear normally in the format Nom–Acc–Gen–Dat–Abl, which is also roughly the order of how frequently the cases appear in Latin text, meaning that the cases are introduced in teaching in this order. This paradigm has been the usual order in the United Kingdom and many Commonwealth countries since the publication of Benjamin Hall Kennedy's Latin Primer (1866). It is the only method nowadays used in Hungary and Finland. It is also usual in France, Spain, and Portugal.
This alternative sequence arose from Byzantine grammarians who were originally writing about Greek. It is standard in the United States, although modern texts increasingly move the vocative at the end to minimize disruption to the declensions in which it is identical to the nominative; some introductory texts such as Wheelock's Latin almost entirely ignore the vocative and locative except for a few brief notes, giving the format Nom–Gen–Dat–Acc–Abl–(Voc). This paradigm is also used in Poland, as it closely corresponds to the conventional case order in the Polish language, except for the latter's use of an instrumental case instead of an ablative. The same sequence is predominant in the Netherlands, although the modern Dutch language has largely lost its case system; instead, the rationale is that this general order is convenient for the consistent teaching of three different commonly studied declensional languages: Latin, Ancient Greek, and modern German. The order Nom–Gen–Dat–Acc–(Voc)–Abl is also used in Germany itself to echo the conventional order of German cases (Nom–Gen–Dat–Acc), and also in Lithuania because the conventional order of Lithuanian noun cases is the same. The locative is dealt with separately as it is seldom used in Latin and might be considered to be on the verge of extinction in Classical Latin.
The order Nom–Gen–Dat–Acc–Voc–Abl is the standard order used in Greece (both for the teaching of Ancient and Modern Greek as well as Latin) and Italy (with the vocative case before the ablative). Here again, the locative is dealt with separately.
Brazilian grammarian Napoleão Mendes used the unusual sequence Nom–Voc–Gen–Dat–Acc–Abl. The Latinum podcast uses Nom–Voc–Acc–Abl–Dat–Gen, as this facilitates memorisation. Latinum deals with the locative separately.
- Mongan, James Roscoe (1861). The School and University Eton Latin Grammar, Explanatory and Critical. London 1861.
- Lowe, Cheryl (2003). Latina Christiana: Introduction to Christian Latin. USA: Memoria Press. p. 9. ISBN 978-1-930953-01-7.
- Allen and Greenough. §43 c.
- Allen and Greenough. §49 a.
- Gildersleeve & Lodge §15, Allen & Greenough §12, §49c
- Chambers's Etymological Dictionary Enlarged Edition 1931
- June 1999 issue of ASM News by the American Society for Microbiology
- Nuntii Latini: Finnish Broadcasting Company (Radiophonia Finnica Generalis). Archiv I. 19.5.2000 – 6.12.2002: "NOVUM VIRUS COMPUTATORIUM
Novum viri computatorii genus nomine Code Red in praesenti in Interreti grassatur, ut nuntiavit institutum SANS, cuius est securitati retis informatici providere. Code Red II, quod per cursum electronicum diffunditur, priore viro acerbius est et, postquam in servitoria penetravit, in systema lacunam facit. Ita fieri potest, ut alia vira eaque etiam periculosiora in machinas computatorias irrepant. Iam vermis Code Red I molestissimus fuit, cum biduo in trecenta milia computatrorum in omni orbe terrarum invasit."
- Pons: virus
- William T. Stearn: Botanical Latin. History, Grammar, Syntax, Terminology and Vocabulary. David & Charles, third edition, 1983. Quote: "Virus: virus (s.n. II), gen. sing. viri, nom. pl. vira, gen. pl. vīrorum (to be distinguished from virorum, of men)."
- Allen and Greenough. §80.
- Cicero, Epistulae ad Atticum 6.1.20 etc.
- Cicero, Pro Rabirio Postumo 4
- Cicero, Pro Milone 29
- Cornelius Nepos, Hannibal 12.2
- Allen and Greenough. §152: correlatives.
- Gibbs, Laura (Spring 2003). "Medieval Latin Online: Correlatives". ONLINE TEXTBOOK for Medieval Latin (online textbook). University of Oklahoma. Retrieved 3 January 2014.
- Gildersleeve & Lodge (1903), Gildersleeve's Latin Grammar, p. 39.
- Latin declensor (in Spanish)
- New Latin Grammar, an eBook, originally written by Charles Edwin Bennett, at the Project Gutenberg
- Interactive Latin Word Endings
- A Student's Latin Grammar, by Cambridge Latin Course's Robin m. Griffin, Third Edition
- Gildersleeve, B. L.; Gonzalez Lodge (1895). Gildersleeve's Latin Grammar (3rd ed.). Macmillan. ISBN 0-333-09215-5.
- Greenough, J. B.; G. L. Kittredge; A. A. Howard; Benj. L. D'Ooge (1903). Allen and Greenough's New Latin Grammar for Schools and Colleges. Ginn and Company.