lust 
(lŭst)
(lŭst)n.
1. Intense sexual desire.
2.
a. An overwhelming desire or craving: a lust for power.
b. Intense eagerness or enthusiasm: a lust for life.
3. Obsolete Pleasure; relish.
intr.v. lust·ed, lust·ing, lusts
To have an intense desire, especially one that is sexual.
[Middle English, from Old English, desire; see las- in the Appendix of Indo-European roots.]