Defraud - Vine's Expository Dictionary of New Testament Words
Defraud[ 1,,G650, apostereo ]
signifies to rob, despoil, defraud," Mark 10:19; 1 Corinthians 6:8; 1 Corinthians 7:5 (of that which is due to the condition of natural relationship of husband and wife); in the Middle Voice, "to allow oneself to be defrauded," 1 Corinthians 6:7; in the Passive Voice, "bereft," 1 Timothy 6:5, RV, with reference to the truth, with the suggestion of being retributively "robbed" of the truth, through the corrupt condition of the mind. Some mss. have this verb in James 5:4 for aphustereo, "to keep back by fraud." See BEREFT, DESTITUTE, FRAUD. In the Sept., Exodus 21:10; in some mss., Deuteronomy 24:14.
[ 2,,G4122, pleonekteo ]
translated "defraud" in 1 Thessalonians 4:6, AV (RV, "wrong"), the reference being to the latter part of the Tenth Commandment. See ADVANTAGE, C, No. 2.