(This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium.)
Probably from a Finnic (whereas Finnish ruokko), compare Skolt Sami ruâkk and Ter Sami рыэһһка (rïehhkâ).
руэһк (ruehk)
| Declension of руэһк (type I noun, һк-к gradation) | ||
|---|---|---|
| Nominative | руэһк (ruehk) | |
| Genitive | руэк (ruek) | |
| Dative-Illative | руэһка (ruehka) | |
| Comitative | руэкэнҍ (rueken’) | |
| singular | plural | |
| Nominative | руэһк (ruehk) | руэк (ruek) |
| Accusative | руэк (ruek) | руэкэтҍ (rueket’) |
| Genitive | руэк (ruek) | руэкэ (rueke) |
| Dative-Illative | руэһка (ruehka) | руэкэтҍ (rueket’) |
| Locative | руэкэсьт (ruekes’t) | руэкэнҍ (rueken’) |
| Comitative | руэкэнҍ (rueken’) | руэкэгуэйм (ruekeguejm) |
| Abessive | руэкха (ruekxa) | руэкэха (ruekexa) |
| Essive | руэһкэнҍ (ruehken’) | |
| Partitive | руэһкэ (ruehke) | |