Déclinaison / Conjugueur latin
| SINGULIER |
| Nom. | Idumaeus |
| Gen. | Idumaei |
| Dat. | Idumaeo |
| Acc. | Idumaeum |
| Abl. | Idumaeo |
| Voc. | Idumaee |
| PLURIEL |
| Nom. | Idumaei |
| Gen. | Idumaeōrum |
| Dat. | Idumaeis |
| Acc. | Idumaeos |
| Abl. | Idumaeis |
| Voc. | Idumaei |
| SINGULIER |
| Nom. | Idumaeă |
| Gen. | Idumaeae |
| Dat. | Idumaeae |
| Acc. | Idumaeam |
| Abl. | Idumaeā |
| Voc. | Idumaeă |
| PLURIEL |
| Nom. | Idumaeae |
| Gen. | Idumaeārum |
| Dat. | Idumaeis |
| Acc. | Idumaeas |
| Abl. | Idumaeis |
| Voc. | Idumaeae |
| SINGULIER |
| Nom. | Idumaeum |
| Gen. | Idumaei |
| Dat. | Idumaeo |
| Acc. | Idumaeum |
| Abl. | Idumaeo |
| Voc. | Idumaeum |
| PLURIEL |
| Nom. | Idumaea |
| Gen. | Idumaeōrum |
| Dat. | Idumaeis |
| Acc. | Idumaea |
| Abl. | Idumaeis | |