Sentence:  Over the years, psychiatrists have quite properly rejected many other "disorders" that reflected earlier cultural prejudices, such as <WSD>drapetomania</WSD>, lack of vaginal orgasm, childhood masturbation disorder, masochism, and nymphomania (Wakefield, 1992). 
Meaning of the word marked with <WSD> tags:  The desire of slaves to run away, viewed as a mental illness.