STEP Hebrew Lexicon: כָּרַע

1) to bend, kneel, bow, bow down, sink down to one's knees, kneel down to rest (of animals), kneel in reverence

1a) (Qal)

1a1) to bow

1a2) to bow down, crouch

1a3) to bow down over

1a4) to tilt, lean

1b) (Hiphil) to cause to bow