| Singular | Plural | |
|---|---|---|
| Nominativ | cassianus, cassom, cassum | cassa |
| Genitiv | cassianos, cassiusque, cassianum, cassianus, cassideis, cassi, cassignatus, cassianae, cassiope, cassianam, cassiopia, cassiano | cassorum |
| Dativ | cassiano, casso | cassis |
| Akkusativ | cassianum, cassum | cassianos, cassa |
| Ablativ | cassiano, casso | cassis |
| Vokativ | cassum | cassa |