| Singular | Plural | |
|---|---|---|
| Nominativ | acaunumarga | acaunumargae |
| Genitiv | acaunumargae, acaunumargai | acaunumargum, acaunumargarum |
| Dativ | acaunumargae, acaunumargai | acaunumargis, acaunumargabus |
| Akkusativ | acaunumargam | acaunumargas |
| Ablativ | acaunumarga, acaunumargad | acaunumargis, acaunumargabus |
| Vokativ | acaunumarga | acaunumargae |