出典:Wiktionary
Third declension.
| Case | Singular | Plural |
|---|---|---|
| nominative | summersiō | summersiōnēs |
| genitive | summersiōnis | summersiōnum |
| dative | summersiōnī | summersiōnibus |
| accusative | summersiōnem | summersiōnēs |
| ablative | summersiōne | summersiōnibus |
| vocative | summersiō | summersiōnēs |