| Singular | Plural | |
|---|---|---|
| Nominativ | lethaeus, lethea, lethaeum, lethaea, lethaeumque | lethaea, lethaeae, lethea, lethaei |
| Genitiv | lethaeae, lethaei, lethaei | lethaeorum, lethaeorum, lethaearum |
| Dativ | lethaeo, lethaeo, lethaeae | lethaeis |
| Akkusativ | lethaeumque, lethaeam, lethaeum, lethaeum, lethaeumque | lethaea, lethea, lethaeos, lethaeas |
| Ablativ | lethaeo, lethea, lethaeo, lethaea | lethaeis |
| Vokativ | lethea, lethaee, lethaeum, lethaea, lethaeumque | lethaea, lethaeae, lethea, lethaei |
| Singular | Plural | |
|---|---|---|
| Nominativ | — | — |
| Genitiv | — | — |
| Dativ | — | — |
| Akkusativ | — | — |
| Ablativ | — | — |
| Vokativ | — | — |
| Singular | Plural | |
|---|---|---|
| Nominativ | — | — |
| Genitiv | — | — |
| Dativ | — | — |
| Akkusativ | — | — |
| Ablativ | — | — |
| Vokativ | — | — |
| Grundform | |
|---|---|
| Positiv | lethaee |
| Komparativ | — |
| Superlativ | — |