Deklinationen
| Singular | Plural | |
|---|---|---|
| Nominativ | singular sg cooptatio | plural pl cooptationes |
| Genitiv | singular sg cooptationis | plural pl cooptationum |
| Dativ | singular sg cooptationi | plural pl cooptationibus |
| Akkusativ | singular sg cooptationem | plural pl cooptationes |
| Ablativ | singular sg cooptatione | plural pl cooptationibus |
| Vokativ | singular sg cooptatio | plural pl cooptationes |