9 letters · 11 points in Scrabble
originEtymology tree Ancient Greek ῐ̓́σος (ĭ́sos)lbor. English iso- Proto-Indo-European *gʷṓws Proto-Hellenic *gʷous Ancient Greek βοῦς (boûs) Proto-Indo-European *tewh₂- Proto-Indo-European *-rós Proto-Indo-European *tuh₂rós Proto-Hellenic *tūrós Ancient Greek τῡρός (tūrós) Ancient Greek βούτῡρος (boútūros)der. English but- English -ene English butene English isobutene From iso- + butene.
Etymology from Wiktionary, CC BY-SA 3.0