c. 1600, from earlier adjective or past participle dislocate "out of joint" (c. 1400), from Medieval Latin dislocatus, past participle of dislocare "put out of place," from Latin dis- "away" (see dis-) + locare "to place" (see locate). Related: Dislocated; dislocating.[dislocate etymology, dislocate origin, 英语词源]