Déclinaison / Conjugueur latin
| SINGULIER |
| Nom. | obsidialis |
| Gen. | obsidialis |
| Dat. | obsidiali |
| Acc. | obsidialem |
| Abl. | obsidiali |
| Voc. | obsidialis |
| PLURIEL |
| Nom. | obsidiales |
| Gen. | obsidialĭum |
| Dat. | obsidialĭbus |
| Acc. | obsidiales |
| Abl. | obsidialĭbus |
| Voc. | obsidiales |
| SINGULIER |
| Nom. | obsidialis |
| Gen. | obsidialis |
| Dat. | obsidiali |
| Acc. | obsidialem |
| Abl. | obsidiali |
| Voc. | obsidialis |
| PLURIEL |
| Nom. | obsidiales |
| Gen. | obsidialĭum |
| Dat. | obsidialĭbus |
| Acc. | obsidiales |
| Abl. | obsidialĭbus |
| Voc. | obsidiales |
| SINGULIER |
| Nom. | obsidiale |
| Gen. | obsidialis |
| Dat. | obsidiali |
| Acc. | obsidiale |
| Abl. | obsidiali |
| Voc. | obsidiale |
| PLURIEL |
| Nom. | obsidialĭa |
| Gen. | obsidialĭum |
| Dat. | obsidialĭbus |
| Acc. | obsidialĭa |
| Abl. | obsidialĭbus | |