amnesty vs pardoning

amnesty

noun
  • An act of the sovereign power granting oblivion, or a general pardon, for a past offense, as to subjects concerned in an insurrection. 

  • Forgetfulness; cessation of remembrance of wrong; oblivion. 

verb
  • To grant a pardon (to a group) 

pardoning

noun
  • The act by which somebody is pardoned. 

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