concubine vs hustler

concubine

noun
  • A slave-girl or woman, kept for instance in a harem, who is held for sexual service. 

  • A sexual partner, especially a woman, to whom one is not or cannot be married. 

  • A woman who lives with a man, but who is not a wife. 

hustler

noun
  • A prostitute. 

  • A charlatan, huckster, grifter, swindler, a scoundrel. 

  • A pimp. 

  • Somebody who pretends to be an amateur at a game in order to win bets. 

  • A male prostitute who sells his services to men. 

  • One who rushes or hurries; an energetic person. 

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