Merriam-Webster Collegiate Dictionary - whore

 I. noun  Etymology: Middle English hore, from Old English hore; akin to Old Norse hora ~, horr adulterer, Latin carus dear — more at charity  Date: before 12th century  1. a woman who engages in sexual acts for money ; prostitute; also a promiscuous or immoral woman  2. a male who engages in sexual acts for money  3. a venal or unscrupulous person  II. verb  (~d; whoring)  Date: 1554  intransitive verb  1. to have unlawful sexual intercourse as or with a ~  2. to pursue a faithless, unworthy, or idolatrous desire  transitive verb obsolete to corrupt by lewd intercourse ; debauch