9 letters · 14 points in Scrabble
noun a person who has obsessions
adjective characterized by or constituting an obsession
originEtymology tree English obsess Proto-Indo-European *-wós Proto-Indo-European *-iHwósder. Latin -īvus Old French -ifbor. Middle English -yf English -ive English obsessive From obsess + -ive.
Etymology from Wiktionary, CC BY-SA 3.0