ethic vs ideology

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. 

ideology

noun
  • Doctrine, philosophy, body of beliefs or principles belonging to an individual or group. 

  • The study of the origin and nature of ideas. 

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