Muin () is the eleventh letter of the Ogham alphabet. Its phonetic value is [m].[1]

Ogham letters ᚛ᚑᚌᚐᚋᚁᚂᚃᚓᚇᚐᚅ᚜
Aicme Beithe
Aicme Muine
[b] Beith [m] Muin
[l] Luis [ɡ] Gort
[w] Fearn [ɡʷ] nGéadal
[s] Sail [st], [ts], [sw] Straif
[n] Nion [r] Ruis
Aicme hÚatha
Aicme Ailme
[j] Uath [a] Ailm
[d] Dair [o] Onn
[t] Tinne [u] Úr
[k] Coll [e] Eadhadh
[kʷ] Ceirt [i] Iodhadh
Forfeda ᚛ᚃᚑᚏᚃᚓᚇᚐ᚜
(rare, sounds uncertain)
[ea], [k], [x], [eo] Éabhadh
[oi] Ór
[ui] Uilleann
[p], [io] Ifín [p] Peith
[x], [ai] Eamhancholl


In the medieval kennings, called Bríatharogaim or Word Ogham the verses associated with Muin are:[2]

  • tressam fedmae - "strongest in exertion" in the Bríatharogam Morann mic Moín
  • árusc n-airlig - "proverb of slaughter" in the Bríatharogam Mac ind Óc
  • conar gotha - "path of the voice" in the Bríatharogam Con Culainn.

The Bríatharogam kennings reflect the fact the Old Irish muin has three homonyms meaning "neck, upper part of the back", "wile, ruse, trick", and "love, esteem". Which of these gave the letter its name is not know for certain, but is thought to be "neck". This is related to the archaic Welsh mwn ("neck") and Latin monile.


  1. ^ McManus, Damian. (1991). A guide to Ogam. Maynooth: An Sagart. ISBN 1-870684-17-6. OCLC 24181838.
  2. ^ McManus, Damian (1988). "Irish Letter-Names and Their Kennings". Ériu. 39: 127–168. JSTOR 30024135.