exogamy (n.)youdaoicibaDictYouDict[exogamy 词源字典]
1865, Modern Latin, literally "outside marriage," from exo- + -gamy. Related: Exogamous (1865). Apparently coined by Scottish anthropologist John Ferguson McLennan (1827-1881) in "Primitive Marriage" (see endogamy).[exogamy etymology, exogamy origin, 英语词源]