penchant vs weakness

penchant

noun
  • Taste, liking, or inclination (for). 

  • A card game resembling bezique. 

  • In the game of penchant, any queen and jack of different suits held at the same time. 

weakness

noun
  • A special fondness or desire. 

  • An inadequate quality; fault 

  • The condition of being weak. 

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