prowess vs virtuosity

prowess

noun
  • Skillfulness and manual ability; adroitness or dexterity. 

  • An act of distinguished bravery or courage; a heroic deed. 

  • Distinguished bravery or courage, especially in battle; heroism. 

  • An act of adroitness or dexterity. 

virtuosity

noun
  • The technical skills and fluent style of a virtuoso. 

  • Lovers of the elegant arts as a class. 

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