5 letters · 7 points in Scrabble
verb overthrow by argument, evidence, or proof
verb prove to be false or incorrect
originInherited from Middle English rebutten, rebouten, from Old French reboter, rebuter, rebouter, etc., from re- + boter, buter, bouter (“to butt”). Entered English around 1302-1307.
Etymology from Wiktionary, CC BY-SA 3.0