persuade vs restrain

persuade

verb
  • To successfully convince (someone) to agree to, accept, or do something, usually through reasoning and verbal influence. 

restrain

verb
  • To control or keep in check. 

  • To deprive of liberty. 

  • To strain again. 

  • To restrict or limit. 

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