出典:Wiktionary
出典:『Wiktionary』 (2025/10/28 03:09 UTC 版)
From Ancient Greek ὄστρεον (óstreon, “oyster”).
ostrum n (genitive ostrī); second declension
Second-declension noun (neuter).
| singular | plural | |
|---|---|---|
| nominative | ostrum | ostra |
| genitive | ostrī | ostrōrum |
| dative | ostrō | ostrīs |
| accusative | ostrum | ostra |
| ablative | ostrō | ostrīs |
| vocative | ostrum | ostra |