Madonna vs Mummy

Madonna

name

  • The Virgin Mary, the mother of Jesus. 

  • A female given name from Italian. 

noun

  • An artistic representation of the Virgin Mary, chiefly when holding the infant Jesus. 

  • A morally pure woman. 

Mummy

name

  • One's mother. 

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