polygamy (n.)youdaoicibaDictYouDict[polygamy 词源字典]
1590s, from Late Latin polygamia, from Late Greek polygamia "polygamy," from polygamos "often married," from polys "many" + gamos "marriage" (see gamete). Not etymologically restricted to marriage of one man and multiple women (technically polygyny), but often used as if it were. Related: Polygamist.[polygamy etymology, polygamy origin, 英语词源]