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

Noah Webster's New International Dictionary of the English Language

(n.) Sexual lust; morbid carnal passion.