liberate vs nab

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. 

nab

verb
  • To grab or snatch something. 

  • To seize, arrest or take into custody (a criminal or fugitive). 

noun
  • The cock of a gunlock. 

  • The summit of a hill. 

  • The keeper, or box into which the lock is shot. 

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