| Singular | Plural | |
|---|---|---|
| Nominativ | collacticia | collacticiae |
| Genitiv | collacticiai, collacticiae | collacticiarum, collacticium |
| Dativ | collacticiai, collacticiae | collacticiis, collacticiabus |
| Akkusativ | collacticiam | collacticias |
| Ablativ | collacticia, collacticiad | collacticiis, collacticiabus |
| Vokativ | collacticia | collacticiae |