Déclinaison / Conjugueur latin
| SINGULIER |
| Nom. | Mattiacus |
| Gen. | Mattiaci |
| Dat. | Mattiaco |
| Acc. | Mattiacum |
| Abl. | Mattiaco |
| Voc. | Mattiace |
| PLURIEL |
| Nom. | Mattiaci |
| Gen. | Mattiacōrum |
| Dat. | Mattiacis |
| Acc. | Mattiacos |
| Abl. | Mattiacis |
| Voc. | Mattiaci |
| SINGULIER |
| Nom. | Mattiacă |
| Gen. | Mattiacae |
| Dat. | Mattiacae |
| Acc. | Mattiacam |
| Abl. | Mattiacā |
| Voc. | Mattiacă |
| PLURIEL |
| Nom. | Mattiacae |
| Gen. | Mattiacārum |
| Dat. | Mattiacis |
| Acc. | Mattiacas |
| Abl. | Mattiacis |
| Voc. | Mattiacae |
| SINGULIER |
| Nom. | Mattiacum |
| Gen. | Mattiaci |
| Dat. | Mattiaco |
| Acc. | Mattiacum |
| Abl. | Mattiaco |
| Voc. | Mattiacum |
| PLURIEL |
| Nom. | Mattiaca |
| Gen. | Mattiacōrum |
| Dat. | Mattiacis |
| Acc. | Mattiaca |
| Abl. | Mattiacis | |