excellence vs foible

excellence

noun
  • The quality of being excellent; brilliance 

  • Something in which one excels. 

  • An excellent or valuable quality; something at which any someone excels; a virtue. 

foible

noun
  • A quirk, idiosyncrasy, or mannerism; an unusual habit that is slightly strange or silly. 

  • A weakness or failing of character. 

  • Part of a sword between the middle and the point, weaker than the forte. 

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