| Singular | Plural | |
|---|---|---|
| Nominativ | harvix | harviges, harviges |
| Genitiv | harvigis, harvigis | harvigium, harvigum, harvigium, harvigum |
| Dativ | harvige, harvigi, harvigi | harvigibus, harvigibus |
| Akkusativ | harvigem, harvigem | harviges, harviges, harvigis, harvigis |
| Ablativ | harvige, harvige | harvigibus, harvigibus |
| Vokativ | harvix | harviges, harviges |