xanthous (adj.)youdaoicibaDictYouDict[xanthous 词源字典]
1829, "fair-haired and light-complexioned," from Greek xanthos "yellow," of unknown origin (see xantho-). But the word also was used in 19c. anthropology as "specifying the yellow or Mongoloid type of mankind" [Century Dictionary].[xanthous etymology, xanthous origin, 英语词源]