Déclinaison / Conjugueur latin
| SINGULIER |
| Nom. | octagonos |
| Gen. | octagoni |
| Dat. | octagono |
| Acc. | octagonon |
| Abl. | octagono |
| Voc. | octagone |
| PLURIEL |
| Nom. | octagoni |
| Gen. | octagonōrum |
| Dat. | octagonis |
| Acc. | octagonos |
| Abl. | octagonis |
| Voc. | octagoni |
| SINGULIER |
| Nom. | octagonă |
| Gen. | octagonae |
| Dat. | octagonae |
| Acc. | octagonam |
| Abl. | octagonā |
| Voc. | octagonă |
| PLURIEL |
| Nom. | octagonae |
| Gen. | octagonārum |
| Dat. | octagonis |
| Acc. | octagonas |
| Abl. | octagonis |
| Voc. | octagonae |
| SINGULIER |
| Nom. | octagonon |
| Gen. | octagoni |
| Dat. | octagono |
| Acc. | octagonon |
| Abl. | octagono |
| Voc. | octagonon |
| PLURIEL |
| Nom. | octagona |
| Gen. | octagonōrum |
| Dat. | octagonis |
| Acc. | octagona |
| Abl. | octagonis | |