yen (n.1)youdaoicibaDictYouDict[yen 词源字典]
Japanese monetary unit, 1875, from Japanese yen, from Chinese yuan "round, round object, circle, dollar."[yen etymology, yen origin, 英语词源]
yen (n.2)youdaoicibaDictYouDict
"sharp desire, hunger," 1906, earlier yen-yen (1900), yin (1876) "intense craving for opium," from Chinese (Cantonese) yan "craving," or from a Beijing dialect word for "smoke." Reinforced in English by influence of yearn.