| Singular | Plural | |
|---|---|---|
| Nominativ | cataphractas, cataphracta | cataphractae |
| Genitiv | cataphractae, cataphractai | cataphractarum, cataphractum |
| Dativ | cataphractae, cataphractai | cataphractis, cataphractabus |
| Akkusativ | cataphractam | cataphractas |
| Ablativ | cataphracta, cataphractad | cataphractis, cataphractabus |
| Vokativ | cataphracta | cataphractae |