Sectarian (adjective)

1. Relating to or belonging to a particular religious sect or denomination.
2. Exclusive, divisive, or prejudiced towards others outside of one's own religious or political group.
3. Relating to or arising from differences between sects or denominations within a larger religious or political group.

Origin:

The word 'sectarian' comes from the latin word 'sectarius' meaning 'of or belonging to a sect or religious group'. the term was first used in english in the 17th century to describe someone or something related to a particular religious sect or denomination.

Examples:

1. The conflict in the region was mainly sectarian, with different religious groups fighting against each other.
2. His sectarian views made it difficult for him to work with people from other religious backgrounds.
3. The sectarian violence in the city left many homes and businesses destroyed.
4. She was accused of having sectarian motivations in her political campaign.
5. The sectarian divide in the country was one of the biggest challenges facing its leaders.