ceathrúil (genitive singular masculine ceathrúil, genitive singular feminine ceathrúla, plural ceathrúla, not comparable)
| singular | plural (m/f) | |||
|---|---|---|---|---|
| Positive | masculine | feminine | (strong noun) | (weak noun) |
| nominative | ceathrúil | cheathrúil | ceathrúla; cheathrúla2 | |
| vocative | cheathrúil | ceathrúla | ||
| genitive | ceathrúla | ceathrúla | ceathrúil | |
| dative | ceathrúil; cheathrúil1 |
cheathrúil | ceathrúla; cheathrúla2 | |
| 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.
| radical | lenition | eclipsis |
|---|---|---|
| ceathrúil | cheathrúil | gceathrúil |
Note: Certain mutated forms of some words can never occur in standard Modern Irish.
All possible mutated forms are displayed for convenience.