出典:Wiktionary
From Ancient Greek περίοδος (períodos).
periodus f (genitive periodī); second declension
Second-declension noun.
| Case | Singular | Plural |
|---|---|---|
| Nominative | periodus | periodī |
| Genitive | periodī | periodōrum |
| Dative | periodō | periodīs |
| Accusative | periodum | periodōs |
| Ablative | periodō | periodīs |
| Vocative | periode | periodī |