Theotokos vs Virgin Mary

Theotokos

name
  • The Virgin Mary. 

Virgin Mary

name
  • Mary, the mother of Christ. 

noun
  • A drink made with tomato juice and spices, resembling a Bloody Mary, but without alcohol. 

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