רָגַל
From LSJ
ἔστι δίκης ὀφθαλμός ὃς τά πανθ' ὁρᾶ → there is an eye of justice that sees everything, all-seeing justice
English (Strong)
a primitive root; to walk along; but only in specifically, applications, to reconnoiter, to be a tale-bearer (i.e. slander); also (as denominative from רָ֫גֶל) to lead about: backbite, search, slander, (e-)spy (out), teach to go, view.