| Singular Nominative | eas |
| Singular Genitive | easa |
| Plural Nominative | easa; easanna |
| Plural Genitive | eas; easanna |
| Singular Nominative | an eas; an t-eas |
| Singular Genitive | na heasa; an easa |
| Plural Nominative | na heasa; na heasanna |
| Plural Genitive | na n-eas; na n-easanna |