bereave vs liberate

bereave

verb
  • To deprive by or as if by violence; to rob; to strip; to benim. 

  • To destroy life; cut off. 

  • To take away someone or something that is important or close; deprive. 

  • To deprive of power; prevent. 

liberate

verb
  • To acquire from another by theft or force: to steal, to rob. 

  • To release from chemical bonds or solutions. 

  • To acquire from an enemy during wartime, used especially of cities, regions, and other population centers. 

  • To release from servitude or unjust rule. 

  • To release from slavery: to manumit. 

  • To release from restraint or inhibition. 

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