| Singular | Plural | |
|---|---|---|
| Nominativ | diaphonia | diaphoniae |
| Genitiv | diaphoniai, diaphoniae | diaphoniarum, diaphonium |
| Dativ | diaphoniai, diaphoniae | diaphoniis, diaphoniabus |
| Akkusativ | diaphoniam | diaphonias |
| Ablativ | diaphonia, diaphoniad | diaphoniis, diaphoniabus |
| Vokativ | diaphonia | diaphoniae |