IPA: /kɔːrɪˈlɪdʒənɪst/
KK: /kɔːrɪˈlɪdʒənɪst/
A person who shares the same religious beliefs as another person.
As coreligionists, they often attended the same religious services together.
Coreligionist → It is formed from "co-" (meaning together) and "religion" (from Latin "religio", meaning to bind or tie). The suffix "-ist" (meaning one who practices or is concerned with) indicates a person. Thus, a coreligionist is someone who shares the same religion with others, emphasizing the aspect of being bound together by faith.
Think of people who are 'together' ('co-') in their 'beliefs' ('religion') — a coreligionist is someone who shares the same beliefs.