Dictionary.com
Thesaurus.com

acculturize

American  
[uh-kuhl-chuh-rahyz] / əˈkʌl tʃəˌraɪz /
especially British, acculturise

verb (used with object)

acculturized, acculturizing
  1. to cause (a nation, tribe, or other ethnic group) to adopt the culture of another people.


Etymology

Origin of acculturize

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