duke vs pharaoh

duke

noun
  • A high title of nobility; the male holder of a dukedom. 

  • The male ruler of a duchy (female equivalent: duchess). 

  • A fist. 

  • A grand duke. 

  • The sovereign of a small state. 

  • Any of various nymphalid butterflies of the Asian genera Bassarona and Dophla. 

verb
  • To hit or beat with the fists. 

  • To give cash to; to give a tip to. 

pharaoh

noun
  • The supreme ruler of Ancient Egypt; a formal address for the sovereign seat of power as personified by the "king" in an institutional role of Horus son of Osiris; often used by metonymy for Ancient Egyptian sovereignty 

  • The card game faro. 

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