beefeater (n.)youdaoicibaDictYouDict[beefeater 词源字典]
"warder of the Tower of London," 1670s, a contemptuous reference to well-fed servants of the royal household; the notion is of "one who eats another's beef" (see eater, and compare Old English hlaf-æta "servant," literally "loaf-eater").[beefeater etymology, beefeater origin, 英语词源]