foible vs forte

foible

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

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

  • A weakness or failing of character. 

forte

noun
  • The strong part of a sword blade, close to the hilt. 

  • A strength or talent. 

  • A passage in music to be played loudly; a loud section of music. 

adj
  • Loud. Used as a dynamic directive in sheet music in its abbreviated form, "f.", to indicate raising the volume of the music. (Abbreviated in musical notation with an f, the Unicode character 1D191.) 

adv
  • Loudly. 

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