Deklinationen
| Singular | Plural | |
|---|---|---|
| Nominativ | singular sg septimāna | plural pl septimānae |
| Genitiv | singular sg septimānae | plural pl septimānārum |
| Dativ | singular sg septimānae | plural pl septimānīs |
| Akkusativ | singular sg septimānam | plural pl septimānās |
| Ablativ | singular sg septimānā | plural pl septimānīs |
| Vokativ | singular sg septimāna | plural pl septimānae |
