flair vs weakness

flair

noun
  • Distinctive style or elegance. 

  • A natural or innate talent or aptitude. 

verb
  • To add flair. 

weakness

noun
  • A special fondness or desire. 

  • An inadequate quality; fault 

  • The condition of being weak. 

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