instauration vs reconstruction

instauration

noun
  • restoration after decay or dilapidation; renewal; repair 

reconstruction

noun
  • A thing that has been reconstructed or restored to an earlier state. 

  • The act of restoring something to an earlier state. 

  • A result of linguistic reconstruction; a model representing an unattested linguistic unit: a phoneme, a morpheme or a word. 

  • A result of an attempt to understand in detail how a certain result or event occurred. 

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