christianization
/ˌkrɪstʃənɪˈzeɪʃən/
noun
- The process of making something or someone Christian, especially by converting people to Christianity or adding Christian elements to a culture or society.
- The Christianization of the region led to the building of many churches.
- The Christianization of Europe took place over many centuries.
- Historians study the Christianization of local traditions and festivals.