rāgal רָגַל ‘to spy’ (Hebrew)

Etymology^?: a primitive root

rāgal v
1) to go on foot, spy out, foot it, go about, walk along, move the feet
 1a) (Qal) to be a tale-bearer, slander, go about
 1b) (Piel)
  1b1) to slander
  1b2) to go about as explorer, spy
 1c) (Tiphel) to teach to walk