whisker (n.)youdaoicibaDictYouDict[whisker 词源字典]
"hair of a man's face" (usually plural), c. 1600, originally a playful formation, from Middle English wisker "anything that whisks or sweeps" (early 15c.), agent noun from whisk (v.). In reference to animal lip hair, recorded from 1670s. Related: Whiskered; whiskers.[whisker etymology, whisker origin, 英语词源]