encourage vs terrify

encourage

verb
  • To foster, give help or patronage 

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

  • To spur on, strongly recommend. 

terrify

verb
  • To menace or intimidate. 

  • To frighten greatly; to fill with terror. 

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