11 letters · 12 points in Scrabble
verb become worse or disintegrate
verb grow worse
originLearned borrowing from Late Latin dēteriorātus, perfect passive participle of Late Latin dēteriorō (see -ate (verb-forming suffix)), further from Latin dēterior (“worse”). Cognate with French détériorer.
Etymology from Wiktionary, CC BY-SA 3.0