Singular
NOMINATIVE
féithuar (MASC.)
fhéithuar (FEM.)
GENITIVE
fhéithuair (MASC.)
féithuaire (FEM.)
Plural
NOMINATIVE
féithuara
fhéithuara (SLENDER CONSONANTS)
GENITIVE
féithuara (STRONG PLURALS)
féithuar (WEAK PLURALS)
Other forms
COMPARATIVE
níos féithuaire
▪ní b'fhéithuaire
SUPERLATIVE
is féithuaire
▪ab fhéithuaire