genius vs ingenuity

genius

noun
  • Someone possessing extraordinary intelligence or skill; especially somebody who has demonstrated this by a creative or original work in science, music, art etc. 

  • Inspiration, a mental leap, an extraordinary creative process. 

  • Extraordinary mental capacity. 

  • The tutelary deity or spirit of a place or person. 

adj
  • Ingenious, brilliant, very clever, or original. 

ingenuity

noun
  • The ability to solve difficult problems, often in original, clever, and inventive ways. 

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