The word "ecclesiastical" refers to anything related to the Christian church or its clergy. It is used to describe things like religious rituals, practices, or buildings associated with the church. Full definition
The constitutional evils that attend upon any «arbitrariness» exception in the sense applied by the Illinois Supreme Court to justify civil court review of ecclesiastical decisions of final church tribunals are manifest in the instant case. (supreme.justia.com)
He gave his approval to the invasion of England by William the Conqueror (1066), and his legates intervened in ecclesiastical affairs in many countries. (religion-online.org)
The concern with Christ and Scripture also prompts a concern with the church — identified both with ecclesiastical institutions and with emerging communities committed to the struggle for freedom. (religion-online.org)