schoolman vs teach

schoolman

noun
  • A medieval writer, scholar or teacher of the subjects taught at early European universities (such as theology, metaphysics and logic); a scholastic. 

teach

noun
  • teacher 

verb
  • To pass on knowledge generally, especially as one's profession; to act as a teacher. 

  • To pass on knowledge to. 

  • To cause to know the disagreeable consequences of some action. 

  • To cause (someone) to learn or understand (something). 

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