acculturize

[ uh-kuhl-chuh-rahyz ]
/ əˈkʌl tʃəˌraɪz /

verb (used with object), ac·cul·tur·ized, ac·cul·tur·iz·ing.

to cause (a nation, tribe, or other ethnic group) to adopt the culture of another people.
Also especially British, ac·cul·tur·ise.

Origin of acculturize

First recorded in 1890–95; accultur(ation) + -ize