Rücken (der)
n.
dorsum, back, dorsal area, part of a chair where the back rests; rear part of the human body
rucken
v.
jerk, push or pull suddenly; move or cause to move in a sharp an sudden manner
rücken
v.
move, shift, transfer from one person or place to another, push, act of shoving or thrusting, shove, thrust
Ruck (der)
n.
jerk, jolt, tug, pulling, yank, grabbing and drawing toward, shaking, sudden blow, sudden pull