Madonna vs Slave

Madonna

name
  • A female given name from Italian. 

  • The Virgin Mary, the mother of Jesus. 

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

  • A morally pure woman. 

Slave

name
  • Synonym of Sclavia 

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