5 letters · 5 points in Scrabble
noun the state of being contaminated
verb place under suspicion or cast doubt upon
verb contaminate with a disease or microorganism
originReportedly from the phrase “'tain't your balls and 'tain't your ass”. Ascribed to E.E. Landy's Underground Dict. (1972) is the following explanation: ‘'taint their ass and 'taint their pussy.’
Etymology from Wiktionary, CC BY-SA 3.0