| Singular | Plural | |
|---|---|---|
| Nominativ | aether, ether, aeter | aetheres |
| Genitiv | aetheris, aeteris, aeterum, aetherum | — |
| Dativ | aethere, etheri, aetere, aetheri | aetheribus |
| Akkusativ | aethera, aetheras, aetherem | — |
| Ablativ | aethere, aetere | aetheribus |
| Vokativ | aether, ether, aeter | aetheres |
10 (24) Formen für „aether“