invaginate (v.)youdaoicibaDictYouDict[invaginate 词源字典]
1650s, from Medieval Latin invaginatus, past participle of invaginare "to put into a sheath," from Latin in- "in" (see in- (2)) + vagina "a sheath" (see vagina). Related: Invaginated; invagination.[invaginate etymology, invaginate origin, 英语词源]