evoke vs extort

evoke

verb
  • To call out; to draw out or bring forth. 

  • To cause the manifestation of something (emotion, picture, etc.) in someone's mind or imagination. 

  • To elicit a response. 

extort

verb
  • To twist outwards. 

  • To take or seize from an unwilling person by physical force, menace, duress, torture, or any undue or illegal exercise of power or ingenuity. 

  • To obtain by means of the offense of extortion. 

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