concupiscence (n.)

"ardent desire, improper or illicit desire, lustful feeling," mid-14c., from Old French concupiscence and directly from Late Latin concupiscentia "eager desire," from present-participle stem of Latin concupiscere, inceptive of concupere "to be very desirous of," from assimilated form of com-, here probably an intensive prefix (see com-), + cupere "to long for" (see cupidity). Used in Vulgate to translate Greek epithymia.