6 letters · 9 points in Scrabble
noun valuable source of caviar and isinglass; found in Black and Caspian seas
noun small northern whale that is white when adult
originBorrowed from Russian белу́га (belúga), from бе́лый (bélyj, “white”). In modern standard Russian, белу́га (belúga) denotes the fish Huso huso only, while белу́ха (belúxa) denotes the cetacean.
Etymology from Wiktionary, CC BY-SA 3.0