authentic vs genuine

authentic

adj
  • Of the same origin as claimed; genuine. 

  • Conforming to reality and therefore worthy of trust, reliance, or belief. 

  • Having the final as the lowest note of the mode. 

genuine

adj
  • Not counterfeit, spurious, false, or adulterated 

  • Belonging to, or proceeding from the original stock; native 

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