daichead

Irish

**Irish numbers ^(edit)**
← 30	40	50 → ^{[a], [b]}
	4
Cardinal: daichead, dhá fhichead, ceathracha Ordinal: daicheadú, ceathrachadú

From dó +‎ fhichead.

(Munster) IPA^(key): /ˈd̪ˠɑhəd̪ˠ/^[2] (corresponding to the form dathad)
(Connacht) IPA^(key): /ˈd̪ˠɑː.iːd̪ˠ/^[3]; /ˈɣɑː.iːd̪ˠ/ (corresponding to the lenited form dhaichead)^[3]
(Ulster) IPA^(key): /ˈɣaiçəd̪ˠ/^[4], /ˈɣeihəd̪ˠ/^[5] (corresponding to the lenited form dhaichead)

daichead

Always used with nouns in the singular; triggers no mutation:
- daichead carr ― forty cars
- daichead bean ― forty women
- daichead bliain ― forty years
Spontaneously lenited to dhaichead in some dialects.

daichead m (genitive singular daichid, nominative plural daichidí)

Declension of daichead (first declension)

forms with the definite article
	singular	plural
nominative	an daichead	na daichidí
genitive	an daichid	na ndaichead
dative	leis an daichead don daichead	leis na daichidí

Mutated forms of *daichead*
radical	lenition	eclipsis
daichead	dhaichead	ndaichead

Note: Certain mutated forms of some words can never occur in standard Modern Irish.
All possible mutated forms are displayed for convenience.

^ “daichead”, in Historical Irish Corpus, 1600–1926, Royal Irish Academy
^ Sjoestedt, M. L. (1938), Description d’un parler irlandais de Kerry [Description of an Irish Dialect of Kerry] (in French), Paris: Librairie Ancienne Honoré Champion, § 79, page 69
↑ ^3.0 ^3.1 de Bhaldraithe, Tomás (1977), Gaeilge Chois Fhairrge: An Deilbhíocht [The Irish of Cois Fharraige: Accidence] (in Irish), 2nd edition, Institiúid Ard-Léinn Bhaile Átha Cliath [Dublin Institute for Advanced Studies], section 361, page 167
^ Quiggin, E. C. (1906), A Dialect of Donegal, Cambridge University Press, § 487, page 155
^ Wagner, Heinrich (1959), Gaeilge Theilinn: Foghraidheacht, Gramadach, Téacsanna [The Irish of Teelin: Phonetics, Grammar, Texts] (in Irish), Institiúid Ard-Léinn Bhaile Átha Cliath [Dublin Institute for Advanced Studies], section 107, page 38; reprinted 1979

Dinneen, Patrick S. (1927), “daṫad”, in Foclóir Gaeḋilge agus Béarla, 2nd edition, Dublin: Irish Texts Society, page 310; reprinted with additions 1996, →ISBN
“daichead”, in New English-Irish Dictionary, Foras na Gaeilge, 2013–2025, retrieved 21 May 2024
de Bhaldraithe, Tomás (1959), “forty”, in English-Irish Dictionary, An Gúm, retrieved 21 May 2024
Ó Dónaill, Niall (1977), “daichead”, in Foclóir Gaeilge–Béarla, Dublin: An Gúm, →ISBN, retrieved 21 May 2024
Ó Dónaill, Niall; Ua Maoileoin, Pádraig (1991), “daichead”, in An Foclóir Beag (in Irish), Dublin: An Gúm, retrieved 21 May 2024