instauration vs rebirth

instauration

noun
  • restoration after decay or dilapidation; renewal; repair 

rebirth

noun
  • Revival, reinvigoration. 

  • Reincarnation; new birth subsequent to one's first. 

  • Spiritual renewal. 

verb
  • To cause to be born again or spiritually renewed. 

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