nāxal נָכַל ‘to plot’ (Hebrew)

Etymology^?: a primitive root

nāxal v
1) to be deceitful, be crafty, be knavish
 1a) (Qal)
  1a1) to be knavish
  1a2) deceiver (participle)
 1b) (Piel) to beguile
 1c) (Hithpael) to act craftily, act knavishly, deal knavishly