Brown Driver Briggs

 1. to bend, kneel, bow, bow down, sink down to one's knees, kneel
down to rest (of animals), kneel in reverence
  1) (Qal)
1a1. to bow
1a2. to bow down, crouch
1a3. to bow down over
1a4. to tilt, lean
  2) (Hiphil) to cause to bow