en·dog·a·my
noun/enˈdɒɡəmi/
/enˈdɑːɡəmi/
[uncountable] (specialist)- the custom of marrying only people from your local community
族内婚，内婚制（只在一个群体内部通婚的风俗） Word Originmid 19th cent.: from endo- ‘within’ + Greek gamos ‘marriage’, on the pattern of polygamy.