Singular
NOMINATIVE
feireach (MASC.)
fheireach (FEM.)
GENITIVE
fheirigh (MASC.)
feirí (FEM.)
Plural
NOMINATIVE
feireacha
fheireacha (SLENDER CONSONANTS)
GENITIVE
feireacha (STRONG PLURALS)
feireach (WEAK PLURALS)
Other forms
COMPARATIVE
níos feirí
▪ní b'fheirí
SUPERLATIVE
is feirí
▪ab fheirí