adelphogamyyoudaoicibaDictYouDict[adelphogamy 词源字典]
" Anthropology . Marriage between brothers and sisters, especially between several brothers of one family and a woman, or several sisters, of another", Late 19th cent. From ancient Greek ἀδελϕός brother + -gamy, probably after French adelphogamie.[adelphogamy etymology, adelphogamy origin, 英语词源]