costaiseach

Irish

Adjective

costaiseach (genitive singular masculine costaisigh, genitive singular feminine costaisí, plural costaiseacha, comparative costaisí)

1. Alternative form of costasach (“costly, expensive; sumptuous”)

Declension

Declension of costaiseach

	Singular		Plural (m/f)
Positive	Masculine	Feminine	(strong noun)	(weak noun)
Nominative	costaiseach	chostaiseach	costaiseacha; chostaiseacha²
Vocative	chostaisigh		costaiseacha
Genitive		costaisí	costaiseacha	costaiseach
Dative	costaiseach; chostaiseach¹	chostaiseach; chostaisigh (archaic)	costaiseacha; chostaiseacha²
Comparative	níos costaisí
Superlative	is costaisí

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

Mutation

Irish mutation
Radical	Lenition	Eclipsis
costaiseach	chostaiseach	gcostaiseach
Note: Some of these forms may be hypothetical. Not every possible mutated form of every word actually occurs.

References

• Ó Dónaill, Niall (1977) “costasach”, in Foclóir Gaeilge–Béarla, Dublin: An Gúm, →ISBN