enchain (v.)youdaoicibaDictYouDict[enchain 词源字典]
late 14c., "become linked together;" mid-15c., "to secure with a chain," from Old French enchainer, from Medieval Latin incatenare "enchain," from in (see in) + catenare, from catena "a chain" (see chain (n.)). Related: Enchained; enchaining.[enchain etymology, enchain origin, 英语词源]