出典:Wiktionary
出典:『Wiktionary』 (2026/08/25 02:03 UTC 版)
Uncertain. Possibly derived from Proto-Germanic *rūhwaz (“rough”). Compare Middle Low German roche, ruche, Middle Dutch roche, rogghe, Danish rokke, Swedish rocka.
Weak:
| singular | plural | |
|---|---|---|
| nominative | ruhha | ruhhan |
| accusative | ruhhan | ruhhan |
| genitive | ruhhan | ruhhena |
| dative | ruhhan | ruhhum |