出典:Wiktionary
From Gaulish *opolos (“maple”), possibly from Proto-Indo-European *ok̂u̯-olo-, from *h₂eḱ- (“sharp”).[1][2] Compare Proto-Celtic *oketā (“harrow”), Cornish eythin (“gorse”).
Second-declension noun.
| Case | Singular | Plural |
|---|---|---|
| Nominative | opulus | opulī |
| Genitive | opulī | opulōrum |
| Dative | opulō | opulīs |
| Accusative | opulum | opulōs |
| Ablative | opulō | opulīs |
| Vocative | opule | opulī |