votary

US /ˈvoʊ.t̬ɚ.i/
UK /ˈvoʊ.t̬ɚ.i/
1.

kẻ sùng bái

a person who has made a promise to serve a particular religion or god:

:
•
James Nayler was one of the most zealous votaries of Quakerism.