restrain vs rule out

restrain

verb
  • To restrict or limit. 

  • To control or keep in check. 

  • To deprive of liberty. 

  • To strain again. 

rule out

verb
  • To disallow. 

  • To reject an option from a list of possibilities. 

  • To make something impossible. 

  • To cross an item out by drawing a straight line through it, as with a ruler. 

  • To make unavailable. 

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