14 letters · 20 points in Scrabble
originEtymology tree English organo- Proto-Indo-European *ǵʰelh₃- Proto-Hellenic *kʰlōrós Ancient Greek χλωρός (khlōrós) Proto-Indo-European *-nós Proto-Indo-European *-iHnos Proto-Italic *-īnos Latin -īnusder. Old French -inbor. Middle English -in English -ine English chlorine English organochlorine From organo- + chlorine.
Etymology from Wiktionary, CC BY-SA 3.0