archbishopric vs diocesan

archbishopric

noun

  • The jurisdiction of an archbishop. 

  • The rank or office of an archbishop. 

diocesan

noun

  • The bishop of a diocese. 

  • An inhabitant of a diocese. 

adj

  • Pertaining to a diocese. 

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