出典:Wiktionary
From investīgō (“track, investigate, search after”) + -tiō.
Third-declension noun.
| Case | Singular | Plural |
|---|---|---|
| Nominative | investīgātiō | investīgātiōnēs |
| Genitive | investīgātiōnis | investīgātiōnum |
| Dative | investīgātiōnī | investīgātiōnibus |
| Accusative | investīgātiōnem | investīgātiōnēs |
| Ablative | investīgātiōne | investīgātiōnibus |
| Vocative | investīgātiō | investīgātiōnēs |