5 letters · 10 points in Scrabble
noun slender freshwater fishes of Eurasia and Africa resembling catfishes
originFrom Middle English loche, from Old French loche, further origin uncertain, possibly from Vulgar Latin *laukka (“loach”), which could be from Gaulish *leuca (“loach, slug”), also attested as the feminine name Leuca, from leux (“bright, light”), a reference to slugs' bright appearance, the fish later being associated due to similarities to the slug.
Etymology from Wiktionary, CC BY-SA 3.0