spy

Concise Bible Dictionary:

Those are called “spies” whom the rulers of Israel sent to entrap the Lord. They were secret agents who, by feigning themselves just men, hoped to catch the Lord in His replies; but they were themselves put to shame, and confounded by His wisdom (Luke 20:2020And they watched him, and sent forth spies, which should feign themselves just men, that they might take hold of his words, that so they might deliver him unto the power and authority of the governor. (Luke 20:20)).

Strong’s Dictionary of Greek Words:

Greek:
ἐγκάθετος
Transliteration:
egkathetos
Phonic:
eng-kath’-et-os
Meaning:
from 1722 and a derivative of 2524; subinduced, i.e. surreptitiously suborned as a lier-in-wait
KJV Usage:
spy