cantankerous Look up cantankerous at Dictionary.com
1772, said to be "a Wiltshire word," probably an alteration (infl. by raucous) of M.E. contakour "troublemaker" (c.1300), from Anglo-Fr. contec "discord," from O.Fr. contechier, from con- "with" + teche, related to atachier "hold fast" (see attach).