Déclinaison / Conjugueur latin
| SINGULIER |
| Nom. | perpurus |
| Gen. | perpuri |
| Dat. | perpuro |
| Acc. | perpurum |
| Abl. | perpuro |
| Voc. | perpure |
| PLURIEL |
| Nom. | perpuri |
| Gen. | perpurōrum |
| Dat. | perpuris |
| Acc. | perpuros |
| Abl. | perpuris |
| Voc. | perpuri |
| SINGULIER |
| Nom. | perpură |
| Gen. | perpurae |
| Dat. | perpurae |
| Acc. | perpuram |
| Abl. | perpurā |
| Voc. | perpură |
| PLURIEL |
| Nom. | perpurae |
| Gen. | perpurārum |
| Dat. | perpuris |
| Acc. | perpuras |
| Abl. | perpuris |
| Voc. | perpurae |
| SINGULIER |
| Nom. | perpurum |
| Gen. | perpuri |
| Dat. | perpuro |
| Acc. | perpurum |
| Abl. | perpuro |
| Voc. | perpurum |
| PLURIEL |
| Nom. | perpura |
| Gen. | perpurōrum |
| Dat. | perpuris |
| Acc. | perpura |
| Abl. | perpuris | |