Relating to the Christian Church or its clergy; pertaining to organized religion or religious institutions and their practices.
From Greek 'ekklesiastikos,' from 'ekklesia' (assembly, church), which comes from 'ek' (out) and 'kalein' (to call). Originally referred to those 'called out' for religious assembly, evolving to describe anything related to church organization.
Ecclesiastical comes from 'ekklesia' - the 'called out' assembly of believers. Think 'e-clerical' - it's about the 'e' (electronic/organized) side of clerical work, the institutional and administrative aspects of church life rather than just personal faith.
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