| Singular | Plural | |
|---|---|---|
| Nominativ | purpuraque, purpura, purpurascit | purpurae |
| Genitiv | purpurai, purpurae | purpurarum, purpurum |
| Dativ | purpurai, purpurae | purpurissatae, purpurissatus, purpurissum, purpurabus, purpuris |
| Akkusativ | purpuram | purpuras |
| Ablativ | purpuraque, purpura, purpurad, purpurascit | purpurissatae, purpurissatus, purpurissum, purpurabus, purpuris |
| Vokativ | purpuraque, purpura, purpurascit | purpurae |