cúigiú

Irish

Irish numbers ^(edit)

	50
←  4	5	6  →
Cardinal: cúig     Ordinal: cúigiú     Personal: cúigear

Alternative forms

• cúigeadh (superseded)
• cúicceadh, cúigmhadh, cúigmheadh (obsolete)

Etymology

From Middle Irish cóiced, from Old Irish cóiced, from Proto-Celtic *kʷenkʷetos. By surface analysis, cúig +‎ -iú. In northern dialects (Ulster and Mayo) the historical form cúigeadh and the modern form cúigiú are homophonous, so the modern form can be considered simply a respelling to assimilate the word to the ordinal suffix -ú. In the dialects of Galway and Munster the modern form may be considered to have replaced the historical form, which was pronounced /ˈkuːɟə/.

Pronunciation

• (Munster) IPA^(key): /kuːˈɟuː/
• (Connacht) IPA^(key): /ˈkuːɟuː/
• (Ulster) IPA^(key): /ˈkuːɟu/

Adjective

cúigiú (not comparable)

1. fifth

Declension

Declension of cúigiú

	Singular		Plural (m/f)
Positive	Masculine	Feminine	(strong noun)	(weak noun)
Nominative	cúigiú	chúigiú	cúigiú; chúigiú²
Vocative	chúigiú		cúigiú
Genitive		cúigiú	cúigiú	cúigiú
Dative	cúigiú; chúigiú¹	chúigiú	cúigiú; chúigiú²
Comparative	(not comparable)
Superlative	(not comparable)

¹ When the preceding noun is lenited and governed by the definite article.
² When the preceding noun ends in a slender consonant.

Noun

cúigiú m (genitive singular cúigiú, nominative plural cúigithe)

1. a fifth

Declension

Declension of cúigiú

Fourth declension

Bare forms Case Singular Plural Nominative cúigiú cúigithe Vocative a chúigiú a chúigithe Genitive cúigiú cúigithe Dative cúigiú cúigithe

Forms with the definite article Case Singular Plural Nominative an cúigiú na cúigithe Genitive an chúigiú na gcúigithe Dative leis an gcúigiú don chúigiú leis na cúigithe

Mutation

Irish mutation
Radical	Lenition	Eclipsis
cúigiú	chúigiú	gcúigiú
Note: Some of these forms may be hypothetical. Not every possible mutated form of every word actually occurs.

Further reading

• “cúigiú”, in Historical Irish Corpus, 1600–1926, Royal Irish Academy
• Gregory Toner, Sharon Arbuthnot, Máire Ní Mhaonaigh, Marie-Luise Theuerkauf, Dagmar Wodtko, editors (2019), “cóiced”, in eDIL: Electronic Dictionary of the Irish Language
• Dinneen, Patrick S. (1904) “cúigeaḋ”, in Foclóir Gaeḋilge agus Béarla, 1st edition, Dublin: Irish Texts Society, page 208
• Ó Dónaill, Niall (1977) “cúigiú”, in Foclóir Gaeilge–Béarla, Dublin: An Gúm, →ISBN