prediluvian vs venerable

prediluvian

adj
  • Before the Flood; antediluvian. 

noun
  • One who lived before the Flood; an antediluvian. 

venerable

adj
  • Ancient, antiquated or archaic. 

  • Giving an impression of aged goodness and benevolence. 

  • Commanding respect because of age, dignity, character or position. 

  • Made sacred especially by religious or historical association. 

  • Worthy of reverence. 

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