From mór- (“big-”) + ceann (“head”) + -ach.
mórcheannach (genitive singular masculine mórcheannaigh, genitive singular feminine mórcheannaí, plural mórcheannacha, comparative mórcheannaí)
| Singular | Plural (m/f) | |||
|---|---|---|---|---|
| Positive | Masculine | Feminine | (strong noun) | (weak noun) |
| Nominative | mórcheannach | mhórcheannach | mórcheannacha; mhórcheannacha² | |
| Vocative | mhórcheannaigh | mórcheannacha | ||
| Genitive | mórcheannaí | mórcheannacha | mórcheannach | |
| Dative | mórcheannach; mhórcheannach¹ |
mhórcheannach; mhórcheannaigh (archaic) |
mórcheannacha; mhórcheannacha² | |
| Comparative | níos mórcheannaí | |||
| Superlative | is mórcheannaí | |||
¹ When the preceding noun is lenited and governed by the definite article.
² When the preceding noun ends in a slender consonant.
| Irish mutation | ||
|---|---|---|
| Radical | Lenition | Eclipsis |
| mórcheannach | mhórcheannach | not applicable |
| Note: Some of these forms may be hypothetical. Not every possible mutated form of every word actually occurs. | ||