From béic (“yell, shout”, verb) + -ach.
béiceach (genitive singular masculine béicigh, genitive singular feminine béicí, plural béiceacha, comparative béicí)
| singular | plural (m/f) | |||
|---|---|---|---|---|
| Positive | masculine | feminine | (strong noun) | (weak noun) |
| nominative | béiceach | bhéiceach | béiceacha; bhéiceacha2 | |
| vocative | bhéicigh | béiceacha | ||
| genitive | béicí | béiceacha | béiceach | |
| dative | béiceach; bhéiceach1 |
bhéiceach; bhéicigh (archaic) |
béiceacha; bhéiceacha2 | |
| Comparative | níos béicí | |||
| Superlative | is béicí | |||
1 When the preceding noun is lenited and governed by the definite article.
2 When the preceding noun ends in a slender consonant.
béiceach f (genitive singular béiceiche, nominative plural béiceacha)
| ||||||||||||||||||
| radical | lenition | eclipsis |
|---|---|---|
| béiceach | bhéiceach | mbéiceach |
Note: Certain mutated forms of some words can never occur in standard Modern Irish.
All possible mutated forms are displayed for convenience.