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In phonology, hiatus (/hˈtəs/; from Latin hiatus, meaning "gaping"[1]) or diaeresis (/dˈɛrɪsɪs/ or /dˈrɪsɪs/;[2] from Ancient Greek διαίρεσις (diaíresis), meaning "division"[3]) refers to two vowel sounds occurring in adjacent syllables, with no intervening consonant. When two adjacent vowel sounds occur in the same syllable, the result is instead described as a synaeresis.

The English words hiatus and diaeresis themselves each contain a hiatus between the first and second syllables.

Contents

PreferenceEdit

Some languages do not have diphthongs, except optionally in rapid speech, or have a limited number of diphthongs but also numerous vowel sequences which cannot form diphthongs and thus appear in hiatus. This is the case of Japanese, Bantu languages such as Swahili, and Polynesian languages such as Hawaiian and Māori. Examples are Japanese aoi 'blue/green', Swahili eua 'to purify', and Hawaiian aea 'to rise up', all of which are three syllables.

AvoidanceEdit

Many languages disallow or restrict hiatus, avoiding it either by deleting or assimilating the vowel, or by adding an extra consonant.

EpenthesisEdit

A glottal stop or a glide may be added between vowels (epenthesis) to prevent hiatus.

Some non-rhotic dialects of English insert /r/ to avoid hiatus after non-high word-final (or occasionally morpheme-final) vowels, although prescriptive guides for Received Pronunciation discourage this.[4]

ContractionEdit

In Greek and Latin poetry, hiatus is generally avoided, though it does occur in many authors under certain rules with varying degrees of poetic licence. Hiatus may be avoided by elision of a final vowel, occasionally prodelision (elision of initial vowel) and synizesis (pronunciation of two vowels as one without change in writing).

SandhiEdit

In Sanskrit, most instances of hiatus are created by the process of sandhi, as in "arjuna'uvAca" from "arjunas" or "sarva'eva" from "sarve".

MarkingEdit

DiaeresisEdit

In Dutch and French, the second of two vowels in hiatus is marked with a diaeresis (or "tréma"). This usage is occasionally seen in English (examples include coöperate, daïs and reëlect), but it has never been common and over the last century its use in such words has been dropped or replaced by the use of a hyphen except in a very few publications, notably The New Yorker.[5][6] It is, however, still common in loanwords such as naïve and Noël and in the proper names "Zoë" and "Chloë".

Other waysEdit

In Scottish Gaelic, hiatus is written using a number of digraphs: bh, dh, gh, mh, th. Some examples include:

This convention goes back to the Old Irish scribal tradition (though it is more consistently applied in Scottish Gaelic), e.g. lathe (> latha). However, hiatus in Old Irish was usually simply implied in certain vowel digraphs, e.g. óe (> adha), ua (> ogha).

CorreptionEdit

Correption is the shortening of a long vowel before a short vowel in hiatus.

See alsoEdit

ReferencesEdit

  1. ^ hiātus. Charlton T. Lewis and Charles Short. A Latin Dictionary on Perseus Project.
  2. ^ "diaeresis". Oxford English Dictionary (3rd ed.). Oxford University Press. September 2005.  (Subscription or UK public library membership required.)
  3. ^ διαίρεσις. Liddell, Henry George; Scott, Robert; A Greek–English Lexicon at the Perseus Project
  4. ^ "Voice and Speech in the Theatre"
  5. ^ diaeresis: December 9, 1998. The Mavens' Word of the Day. Random House.
  6. ^ Umlauts in English?. General Questions. Straight Dope Message Board.