רָגַל
From LSJ
Περὶ τοῦ ἐπέκεινα τοῦ νοῦ κατὰ μὲν νόησιν πολλὰ λέγεται, θεωρεῖται δὲ ἀνοησίᾳ κρείττονι νοήσεως → On the subject of that which is beyond intellect, many statements are made on the basis of intellection, but it may be immediately cognised only by means of a non-intellection superior to intellection
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.