apostolical vs clerical

apostolical

adj
  • apostolic 

clerical

adj
  • Of or relating to the clergy. 

  • Of or relating to clerks or their work. 

noun
  • Clerical garments. 

  • A member of the clergy. 

How often have the words apostolical and clerical occurred in a corpus of books? (source: Google Ngram Viewer )