oppidan vs townsman

oppidan

noun
  • A class of student in traditional English public schools such as Eton; opposed to colleger or King's Scholar. 

adj
  • Of or pertaining to a town or conurbation. 

townsman

noun
  • A resident of a university town, as opposed to a scholar at the university; a townie. 

  • A man who is a resident of a town, especially of one's own town. 

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