Casanova vs ingenue

Casanova

noun
  • A man considered romantic and gallant, especially one who gives amorous attentions to women. 

  • A promiscuous, philandering man. 

name
  • A surname from the Romance languages, equivalent to English Newhouse. 

ingenue

noun
  • An innocent, unsophisticated, naïve, wholesome girl or young woman. 

  • A dramatic role of such a woman; an actress playing such a role. 

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