9 letters · 11 points in Scrabble
noun a person who refrains from drinking intoxicating beverages
adjective self-restraining; not indulging an appetite especially for food or drink
originFirst attested in the late 14th century as Middle English abstinent, abstynent, from Old French abstinent, from Latin abstinēns, present participle of abstineō. See abstain.
Etymology from Wiktionary, CC BY-SA 3.0