mesentery (n.)youdaoicibaDictYouDict[mesentery 词源字典]
fold of the peritoneum, early 15c., from medical Latin mesenterium "middle of the intestine," from medical Greek mesenterion, from mesos "middle" (see medial (adj.)) + enteron "intestine" (see enteric). Related: Mesenteric.[mesentery etymology, mesentery origin, 英语词源]