| Singular | Plural | |
|---|---|---|
| Nominativ | aerumna | aerumnae |
| Genitiv | aerumnae, aerumnai | aerumnarum, aerumnum |
| Dativ | aerumnae, aerumnai | aerumnis, erumnis, aerumnabus |
| Akkusativ | aerumnam | aerumnas |
| Ablativ | aerumna, aerumnad | aerumnis, erumnis, aerumnabus |
| Vokativ | aerumna | aerumnae |
12 (20) Formen für „aerumna“