faculty vs mastery

faculty

noun
  • An authority, power, or privilege conferred by a higher authority. 

  • A licence to make alterations to a church. 

  • A division of a university. 

  • an ability, power, or skill. 

  • The members of a profession. 

  • The academic staff at schools, colleges, universities or not-for-profit research institutes, as opposed to the students or support staff. 

mastery

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

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

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

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