| Reisack | Nominativ, Singular | nominative case, singular | |
| Reisacke | Genitiv, Singular | genitive case, singular | |
| Reisacken | Dativ, Singular | dative case, singular | |
| Reisack(e)s | Akkusativ, Singular | accusative case, singular | |
| Reisacker | Nominativ, Plural | nominative case, plural | |
| Reisackern | Genitiv, Plural | genitive case, plural | |
| Reisackn | Dativ, Plural | dative case, plural |