extortion vs indemnification

extortion

noun
  • The practice of extorting money or other property by the use of force or threats. 

indemnification

noun
  • That which indemnifies. 

  • The state of being indemnified. 

  • The act or process of indemnifying, preserving, or securing against loss, damage, or penalty. 

  • indemnity 

  • A reimbursement of loss, damage, or penalty. 

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