purveyor vs souteneur

purveyor

noun
  • An officer who provided provisions for the king's household. 

  • Someone who supplies what is needed, especially food. 

souteneur

noun
  • A man who protects a prostitute and lives off her earnings; a pimp. 

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