出典:Wiktionary
Second-declension noun (neuter).
| Case | Singular | Plural |
|---|---|---|
| Nominative | improperium | improperia |
| Genitive | improperiī improperī1 |
improperiōrum |
| Dative | improperiō | improperiīs |
| Accusative | improperium | improperia |
| Ablative | improperiō | improperiīs |
| Vocative | improperium | improperia |