prostitution vs turpitude

prostitution

noun
  • Debasement for profit or impure motives. 

  • Engaging in sexual activity with another person in exchange for goods (not necessarily money) or services. 

  • Engaging in sexual activity with another person for pay. 

turpitude

noun
  • Inherent baseness, depravity or wickedness; corruptness and evilness. 

  • An act evident of such a depravity. 

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