Déclinaison / Conjugueur latin
| SINGULIER |
| Nom. | lethargus |
| Gen. | lethargi |
| Dat. | lethargo |
| Acc. | lethargum |
| Abl. | lethargo |
| Voc. | letharge |
| PLURIEL |
| Nom. | lethargi |
| Gen. | lethargōrum |
| Dat. | lethargis |
| Acc. | lethargos |
| Abl. | lethargis |
| Voc. | lethargi |
| SINGULIER |
| Nom. | lethargă |
| Gen. | lethargae |
| Dat. | lethargae |
| Acc. | lethargam |
| Abl. | lethargā |
| Voc. | lethargă |
| PLURIEL |
| Nom. | lethargae |
| Gen. | lethargārum |
| Dat. | lethargis |
| Acc. | lethargas |
| Abl. | lethargis |
| Voc. | lethargae |
| SINGULIER |
| Nom. | lethargum |
| Gen. | lethargi |
| Dat. | lethargo |
| Acc. | lethargum |
| Abl. | lethargo |
| Voc. | lethargum |
| PLURIEL |
| Nom. | letharga |
| Gen. | lethargōrum |
| Dat. | lethargis |
| Acc. | letharga |
| Abl. | lethargis | |