出典:Wiktionary
Formed as Lettonēs (“Latvians”) + -ia (“land of”), which is equivalent to German Lettland; the first element is a borrowing from German, and the short o is an apparent imitation of the names of Gaulish tribes, or of Greek.
First-declension noun, singular only.
| Case | Singular |
|---|---|
| Nominative | Lettonia |
| Genitive | Lettoniae |
| Dative | Lettoniae |
| Accusative | Lettoniam |
| Ablative | Lettoniā |
| Vocative | Lettonia |