housebreak vs restrain

housebreak

verb
  • To break into a house, typically to burgle it. 

  • To train an animal to avoid urinating or defecating in the house, except within a litterbox, toilet, or other receptacle. 

restrain

verb
  • To strain again. 

  • To control or keep in check. 

  • To deprive of liberty. 

  • To restrict or limit. 

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