Magdalen vs bargirl

Magdalen

name
  • A female given name from Hebrew, variant of Magdalene 

bargirl

noun
  • A female who works as a hostess in a bar, typically in Southeast Asia and catering to male clients, and who may provide personal entertainment or sexual services. 

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