From Platón (“Plato”) + -ach (adjectival suffix).
Platónach (genitive singular masculine Platónaigh, genitive singular feminine Platónaí, plural Platónacha, not comparable)
| Singular | Plural (m/f) | |||
|---|---|---|---|---|
| Positive | Masculine | Feminine | (strong noun) | (weak noun) |
| Nominative | Platónach | Phlatónach | Platónacha; Phlatónacha² | |
| Vocative | Phlatónaigh | Platónacha | ||
| Genitive | Platónaí | Platónacha | Platónach | |
| Dative | Platónach; Phlatónach¹ |
Phlatónach; Phlatónaigh (archaic) |
Platónacha; Phlatónacha² | |
| Comparative | níos Platónaí | |||
| Superlative | is Platónaí | |||
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 |
| Platónach | Phlatónach | bPlatónach |
| Note: Some of these forms may be hypothetical. Not every possible mutated form of every word actually occurs. | ||