Easton's Bible Dictionary: M. G. Easton, M.A., D.D.
Suspicion of a wife's purity, one of the strongest passions (Num. 5:14; Pr. 6:34; Song 8:6); also an intense interest for another's honour or prosperity (Ps. 79:5; 1 Cor. 10:22; Zech. 1:14).