intermarry
/ˌɪntəˈmærɪ/verb
(-ies, -ied)no obj.
1- (of people belonging to different races, castes, or religions) become connected by marriage（不同种族、社会等级或宗教的人）通婚：
over the centuries the Greeks intermarried with the natives.
前后数百年希腊人与当地人通婚。
1.1
- (of close relations) marry each other近亲结婚。