| Singular | Plural | |
|---|---|---|
| Nominativ | agnomen, agnomen | agnomina, agnomina |
| Genitiv | agnominis, agnominis | agnominium, agnominium, agnominum, agnominum |
| Dativ | agnomine, agnomini, agnomini | agnominibus, agnominibus |
| Akkusativ | agnomen, agnomen | agnomina, agnomina |
| Ablativ | agnomine, agnomine | agnominibus, agnominibus |
| Vokativ | agnomen, agnomen | agnomina, agnomina |