Source : Webster's Revised Unabridged Dictionary (1913)

Ecclesiasticism \Ec*cle`si*as"ti*cism\, n.
   Strong attachment to ecclesiastical usages, forms, etc.

Source : WordNet®

ecclesiasticism
     n 1: excessive adherence to ecclesiastical forms and activities;
          "their ecclesiasticism overwhelmed their religion"
     2: religion appropriate to a church and to ecclesiastical
        principles and practices