freebooting vs kidnapping

freebooting

noun
  • Piracy or plundering. 

  • Software piracy, or stealing or unauthorized rehosting of digital content. 

adj
  • Engaged in piracy or plunder 

kidnapping

noun
  • The crime of taking a person against their will, sometimes for ransom. 

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