eunuch (n.) Look up eunuch at Dictionary.com
late 14c., from Middle French eunuque and directly from Latin eunuchus, from Greek eunoukhos "castrated man," originally "guard of the bedchamber or harem," from euno-, comb. form of eune "bed," of unknown origin, + -okhos, from stem of ekhein "to have, hold" (see scheme (n.)).

The Greek and Latin forms of the word were used to translate Hebrew saris, which sometimes meant merely "palace official," in Septuagint and Vulgate, probably without an intended comment on the qualities of bureaucrats.
Eunuches is he þat is i-gilded, and suche were somtyme i-made wardeynes of ladyes in Egipt. [John of Trevisa, translation of Higdon's Polychronicon, 1387]