Merriam-Webster's Collegiate® Dictionary, 11th Edition
LUST
I. noun
Etymology: Middle English, from Old English; akin to Old High German lust pleasure and perhaps to Latin lascivus wanton Date: before 12th century
1. obsolete pleasure , delight , personal inclination ; wish , usually intense or unbridled sexual desire ; lasciviousness,
3. an intense longing ; craving , enthusiasm , eagerness ,
II. intransitive verb
Date: 12th century
to have an intense desire or need ; crave