Brown Driver Briggs

 1. to commit adultery
  1) (Qal)
1a1. to commit adultery
1a  1) usually of man
1a1a1. always with wife of another
1a  2) adultery (of women) (participle)
1a2. idolatrous worship (fig.)
  2) (Piel)
1b1. to commit adultery
1b  1) of man
1b  2) adultery (of women) (participle)
1b2. idolatrous worship (fig.)