intermarriage

noun

1. (countable, uncountable)Marriage between people belonging to different groups, such as different racial, ethnic, or religious groups; mixed marriage.

   “During the 1960s, some Georgians opposed the intermarriage of blacks and whites.”

   “Because whites are by far the nation’s largest racial group, marriage between whites and minorities were the most common type of intermarriage, even though the intermarriage rate for whites is relatively low compared to other races or ethnicities, the study said. The state where most intermarriages took place was Hawaii, where more than four in 10 newlyweds (42.4%) were intermarried.”

   “"The extinction of these languages is also a result of intermarriage.”