Easton's Bible Dictionary: M. G. Easton, M.A., D.D.

Concupiscence

Desire, Rom. 7:8 (R.V., "coveting"); Col. 3:5 (R.V., "desire"). The "lust of concupiscence" (1 Th. 4:5; R.V., "passion of lust") denotes evil desire, indwelling sin.