| Singular | Plural | |
|---|---|---|
| Nominativ | epithalamiom, epithalamium | epitalamia, epithalamia |
| Genitiv | epithalamii | epithalamiorum, epithalamium |
| Dativ | epithalamio | epithalamiis |
| Akkusativ | epithalamium | epitalamia, epithalamia |
| Ablativ | epithalamio | epithalamiis |
| Vokativ | epithalamium | epitalamia, epithalamia |