Déclinaison / Conjugueur latin
| SINGULIER |
| Nom. | gerontocomium |
| Gen. | gerontocomii |
| Dat. | gerontocomio |
| Acc. | gerontocomium |
| Abl. | gerontocomio |
| Voc. | gerontocomium |
| PLURIEL |
| Nom. | gerontocomia |
| Gen. | gerontocomiōrum |
| Dat. | gerontocomiis |
| Acc. | gerontocomia |
| Abl. | gerontocomiis | |