flair vs mastery

flair

noun
  • A natural or innate talent or aptitude. 

  • Distinctive style or elegance. 

verb
  • To add flair. 

mastery

noun
  • The act or process of mastering; the state of having mastered; expertise. 

  • Superiority in war or competition; victory; triumph; preeminence. 

  • The position or authority of a master; dominion; command; supremacy; superiority. 

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