chanter vs churchwarden

chanter

noun
  • The pipe of a bagpipe on which the melody is played. 

  • One who chants or sings. 

  • A priest who sings in a chantry. 

  • The hedge sparrow. 

churchwarden

noun
  • A churchwarden pipe. 

  • A lay officer of the Church of England who handles the secular affairs of the parish. 

  • A similar functionary of the Episcopal church. 

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