Déclinaison / Conjugueur latin
| SINGULIER |
| Nom. | Circaeus |
| Gen. | Circaei |
| Dat. | Circaeo |
| Acc. | Circaeum |
| Abl. | Circaeo |
| Voc. | Circaee |
| PLURIEL |
| Nom. | Circaei |
| Gen. | Circaeōrum |
| Dat. | Circaeis |
| Acc. | Circaeos |
| Abl. | Circaeis |
| Voc. | Circaei |
| SINGULIER |
| Nom. | Circaeă |
| Gen. | Circaeae |
| Dat. | Circaeae |
| Acc. | Circaeam |
| Abl. | Circaeā |
| Voc. | Circaeă |
| PLURIEL |
| Nom. | Circaeae |
| Gen. | Circaeārum |
| Dat. | Circaeis |
| Acc. | Circaeas |
| Abl. | Circaeis |
| Voc. | Circaeae |
| SINGULIER |
| Nom. | Circaeum |
| Gen. | Circaei |
| Dat. | Circaeo |
| Acc. | Circaeum |
| Abl. | Circaeo |
| Voc. | Circaeum |
| PLURIEL |
| Nom. | Circaea |
| Gen. | Circaeōrum |
| Dat. | Circaeis |
| Acc. | Circaea |
| Abl. | Circaeis | |