impeach vs pardon

impeach

verb
  • To bring a legal proceeding against a public official. 

  • To charge with impropriety; to discredit; to call into question. 

  • To hinder, impede, or prevent. 

  • To demonstrate in court that a testimony under oath contradicts another testimony from the same person, usually one taken during deposition. 

pardon

noun
  • An order that releases a convicted criminal without further punishment, prevents future punishment, or (in some jurisdictions) removes an offence from a person's criminal record, as if it had never been committed. 

  • Forgiveness for an offence. 

verb
  • To forgive (a person). 

  • To refrain from exacting as a penalty. 

  • To grant an official pardon for a crime. 

intj
  • Often used when someone does not understand what another person says. 

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