| Singular | Plural | |
|---|---|---|
| Nominativ | runa, seruna | runae |
| Genitiv | runae, runai | runarum, runum |
| Dativ | runae, runai | patrunis, runabus, runis |
| Akkusativ | runam | runas |
| Ablativ | runa, runad, seruna | patrunis, runabus, runis |
| Vokativ | runa, seruna | runae |
12 (23) Formen für „runa“