déach

See also: deach

Irish

Etymology 1

From dé- + -ach.

Adjective

déach (genitive singular masculine déach, genitive singular feminine déiche, plural déacha, not comparable)

1. dual

   Synonyms: dé-, dúbailte

2. (grammar) dual

Declension

Declension of déach

	singular		plural (m/f)
Positive	masculine	feminine	(strong noun)	(weak noun)
nominative	déach	dhéach	déacha; dhéacha2
vocative	dhéach		déacha
genitive		déiche	déacha	déach
dative	déach; dhéach1	dhéach	déacha; dhéacha2
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

déach m (genitive singular déigh, nominative plural déigh)

1. (grammar) dual

Declension

Declension of déach (first declension)

bare forms case singular plural nominative déach déigh vocative a dhéigh a dhéacha genitive déigh déach dative déach déigh forms with the definite article case singular plural nominative an déach na déigh genitive an déigh na ndéach dative leis an déach don déach leis na déigh

Noun

déach m (genitive singular déich, nominative plural déich)

1. (music) second

Declension

Declension of déach (first declension)

bare forms case singular plural nominative déach déich vocative a dhéich a dhéacha genitive déich déach dative déach déich forms with the definite article case singular plural nominative an déach na déich genitive an déich na ndéach dative leis an déach don déach leis na déich

Etymology 2

See the etymology of the corresponding lemma form.

Verb

déach

1. Alternative spelling of d'fhéach

Mutation

Mutated forms of déach

radical	lenition	eclipsis
déach	dhéach	ndéach

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

Further reading

• Ó Dónaill, Niall (1977) “déach”, in Foclóir Gaeilge–Béarla, Dublin: An Gúm, →ISBN
• de Bhaldraithe, Tomás (1959) “déach”, in English-Irish Dictionary, An Gúm
• “déach”, in New English-Irish Dictionary, Foras na Gaeilge, 2013-2024