What's the difference between i.e. and e.g.?
mid-15c., from Anglo-French cupidite, Middle French cupidité, from Latin cupiditatem (nominative cupiditas) "passionate desire, lust; ambition," from cupidus "eager, passionate," from cupere "to desire" (perhaps cognate with Sanskrit kupyati "bubbles up, becomes agitated," Old Church Slavonic kypeti "to boil," Lithuanian kupeti "to boil over"). Despite the primarily erotic sense of the Latin word, in English cupidity originally, and still especially, means "desire for wealth."