courtesanship vs whoring

courtesanship

noun
  • The state of being a courtesan; harlotry. 

whoring

noun
  • Synonym of prostitution, having sex for money; (figurative) disgracing oneself for money; having promiscuous sex. 

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