ethic vs tenet

ethic

noun
  • A set of principles of right and wrong behaviour guiding, or representative of, a specific culture, society, group, or individual. 

  • The morality of an action. 

adj
  • Moral, relating to morals. 

tenet

noun
  • An opinion, belief, or principle that is held as absolute truth by someone or especially an organization. 

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