marasmus (n.)youdaoicibaDictYouDict[marasmus 词源字典]
"wasting away of the body," 1650s, Modern Latin, from Greek marasmos "a wasting away, withering, decay," from marainein "to quench, weaken, wither," from PIE root *mer- "to rub away, harm" (see morbid). Maras (n.) evidently in the same sense is attested from mid-15c. Related: Marasmic.[marasmus etymology, marasmus origin, 英语词源]