lady of leisure vs prostitute

lady of leisure

noun
  • A female prostitute. 

  • An unemployed woman or one who has retired from work. 

  • A lady who is of independent means and so does not need employment; one who is free from duties and responsibilities. 

prostitute

noun
  • A woman who has sexual intercourse or engages in other sexual activity for payment, especially as a means of livelihood. 

  • Any person (especially a woman) who has sexual intercourse or engages in other sexual activity for payment, especially as a means of livelihood. 

  • A person who does, or offers to do, a demeaning or dishonourable activity for money or personal gain; someone who acts in a dishonourable way for personal advantage. 

verb
  • To sacrifice (oneself, one's talents etc.) in return for profit or other advantage; to exploit for base purposes. 

  • To offer (oneself or someone else) for sexual activity in exchange for money. 

adj
  • Taking part in promiscuous sexual activity, licentious; (later, chiefly as attributive use of noun) that is a prostitute. 

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