instauration vs restoration

instauration

noun
  • restoration after decay or dilapidation; renewal; repair 

restoration

noun
  • The process of bringing an object back to its original state; the process of restoring something. 

  • The return of a former monarchy or monarch to power, usually after having been forced to step down. 

  • The receiving of a sinner to divine favor. 

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