adjective/ˈrwin/
contemptible, mean, heartless; mean, stingy; wild; unruly; rachitic
“un pequeño grupo de ovejas ruines e inútiles para la marcha”
Synonyms: vil, despreciable, avaro, mezquino, tacaño, usurero, agarrado, cicatero
From an earlier *ruino, from ruina, or from a Vulgar Latin root *ruīnus, ultimately from Latin ruīna. Compare Portuguese ruim, Catalan roí. The lack of a final /-o/ may suggest a borrowing.