recalcitrant (adj.) Look up recalcitrant at Dictionary.com
1823, from French récalcitrant, literally "kicking back" (17c.-18c.), past participle of recalcitrare "to kick back; be inaccessible," from re- "back" (see re-) + Latin calcitrare "to kick," from calx (genitive calcis) "heel." Used from 1797 as a French word in English.