convict vs liberate

convict

verb
  • To find guilty, as a result of legal proceedings, or (informal) in a moral sense. 

  • To convince, persuade; to cause (someone) to believe in (something). 

noun
  • A person convicted of a crime by a judicial body. 

  • The convict cichlid (Amatitlania nigrofasciata), also known as the zebra cichlid, a popular aquarium fish, with stripes that resemble a prison uniform. 

  • A person deported to a penal colony. 

  • A common name for the sheepshead (Archosargus probatocephalus), owing to its black and gray stripes. 

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 convict and liberate occurred in a corpus of books? (source: Google Ngram Viewer )