| Nominativ | serpentigenas, serpentigena, serpentigenas, serpentigena | serpentigenae, serpentigenae |
| Genitiv | serpentigenae, serpentigenae, serpentigenai, serpentigenai | serpentigenum, serpentigenum, serpentigenarum, serpentigenarum |
| Dativ | serpentigenae, serpentigenai, serpentigenae, serpentigenai | serpentigenis, serpentigenabus, serpentigenis, serpentigenabus |
| Akkusativ | serpentigenam, serpentigenam | serpentigenas, serpentigenas |
| Ablativ | serpentigenad, serpentigena, serpentigenad, serpentigena | serpentigenabus, serpentigenis, serpentigenabus, serpentigenis |
| Vokativ | serpentigena, serpentigena | serpentigenae, serpentigenae |
