heathenize

verb (used with object), hea·then·ized, hea·then·iz·ing.

1. to make heathen.

verb (used without object), hea·then·ized, hea·then·iz·ing.

2. to become heathen.

verb

1. to render or become heathen, or bring or come under heathen influence
2. (intr) to engage in heathen practices