Deklinationen
| Singular | Plural | |
|---|---|---|
| Nominativ | singular sg breviārium | plural pl breviāria |
| Genitiv | singular sg breviāriī | plural pl breviāriōrum |
| Dativ | singular sg breviāriō | plural pl breviāriīs |
| Akkusativ | singular sg breviārium | plural pl breviāria |
| Ablativ | singular sg breviāriō | plural pl breviāriīs |
| Vokativ | singular sg breviārium | plural pl breviāria |