Brown Driver Briggs

 1. to twist, whirl, dance, writhe, fear, tremble, travail, be in
anguish, be pained
  1) (Qal)
1a1. to dance
1a2. to twist, writhe
1a3. to whirl, whirl about
  2) (Polel)
1b1. to dance
1b2. to writhe (in travail with), bear, bring forth
1b3. to wait anxiously
  3) (Pulal)
1c1. to be made to writhe, be made to bear
1c2. to be brought forth
  4) (Hophal) to be born
  5) (Hithpolel)
1e1. whirling (participle)
1e2. writhing, suffering torture (participle)
1e3. to wait longingly
  6) (Hithpalpel) to be distressed