de-set' (mirmah; (dolos)): The intentional misleading or beguiling of another; in Scripture represented as a companion of many other forms of wickedness, as cursing (Ps 10:7), hatred (Pr 26:24), theft, covetousness, adultery, murder (Mr 7:22; Ro 1:29). The Revised Version (British and American) introduces the word in Pr 14:25; 2Th 2:10; but in such passages as Ps 55:11; Pr 20:17; 26:26; 1Th 2:3, renders a variety of words, more accurately than the King James Version, by "oppression," "falsehood," "guile," "error."
The International Standard Bible Encyclopedia
Deceit
The International Standard Bible Encyclopedia, James Orr (1915). Public domain, from the CrossWire SWORD module.