anorexia (n.)youdaoicibaDictYouDict[anorexia 词源字典]
1590s, "lack of appetite," Modern Latin, from Greek anorexia, from an-, privative prefix, "without" (see an- (1)) + orexis "appetite, desire," from oregein "to desire, stretch out" (cognate with Latin regere "to keep straight, guide, rule;" see regal) + abstract noun ending -ia. In current use, often short for anorexia nervosa.[anorexia etymology, anorexia origin, 英语词源]