An Etymological Dictionary of the German Language/Annotated/Zuck
Zuck, masculine, ‘twitch, start, shrug,’ from Middle High German zuc (genitive zuckes), masculine, ‘quick marching, jerk.’ Allied to zucken, zücken, verb, ‘to move convulsively, start, jerk, tug,’ from Middle High German zucken, zücken, Old High German zucchen, zukken, ‘to march quickly, snatch away, jerk, tug’; intensive form of ziehen. Hence the Modern High German compounds entzücken, verzücken (Middle High German enzücken, verzücken), signified originally ‘to snatch away, transport in spirit.’ From the base tukkôn is derived French toucher, Italian toccare.