expel vs proscribe

expel

verb
  • To remove from membership. 

  • To eject or erupt. 

  • To deport. 

proscribe

verb
  • To banish or exclude. 

  • To forbid or prohibit. 

  • To denounce. 

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