单词endogamy
n.: 族内婚
网络: 内婚制；同族结婚；同系交配
族内婚，内婚制（只在一个群体内部通婚的风俗）:
the custom of marrying only people from your local community
【植物;植物学】同系配合
同族通婚
〔农〕同系配合,同系交配
酶系交配
同族结婚
Intermarriage Circle and Rank Endogamy of Cao-Miao People
草苗的通婚圈和阶层婚
Evolution of Intra-class Endogamy in China
中国阶层内婚制的延续