Merriam-Webster Collegiate Dictionary - eunuch

 noun  Etymology: Middle English eunuk, from Latin ~us, from Greek eunouchos, from eune bed + echein to have, have charge of — more at scheme  Date: 15th century  1. a castrated man placed in charge of a harem or employed as a chamberlain in a palace  2. a man or boy deprived of the testes or external genitals  3. one that lacks virility or power political ~s  • ~ism noun