encourage vs proscribe

encourage

verb
  • To spur on, strongly recommend. 

  • To mentally support; to motivate, give courage, hope or spirit. 

  • To foster, give help or patronage 

proscribe

verb
  • To banish or exclude. 

  • To forbid or prohibit. 

  • To denounce. 

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