liberate vs summon

liberate

verb
  • To release from servitude or unjust rule. 

  • 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 slavery: to manumit. 

  • To release from restraint or inhibition. 

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

summon

verb
  • To impose such a fine or penalty, or to issue a notice thereof. 

  • To order (goods) and have delivered 

  • To rouse oneself to exert a skill. 

  • To call a resource by magic. 

  • To call people together; to convene. 

  • To ask someone to come; to send for. 

  • To summons; convene. 

noun
  • A creature magically summoned to do the summoner's bidding. 

  • A notice of an infringement of the law, usually incurring such a penalty; a citation or ticket. 

  • call, command, order 

  • A fine; a fee or monetary penalty incurred for breaking the law; usually for a minor offence such as a traffic violation. 

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