brownify vs chocolate

brownify

verb
  • To make or become more brown. 

  • To cause to contain more racially 'brown' people, elements, or culture. 

  • To become brown due to increased levels of humic material. 

chocolate

verb
  • To add chocolate to; to cover (food) in chocolate. 

  • To treat blood agar by heating in order to lyse the red blood cells in the medium. 

adj
  • Made of or containing chocolate. 

  • Having a dark reddish-brown colour/color. 

  • Black (relating to any of various ethnic groups having dark pigmentation of the skin). 

noun
  • A food made from ground roasted cocoa beans. 

  • A drink made by dissolving this food in boiling milk or water. 

  • A single, small piece of confectionery made from chocolate. 

  • A dark, reddish-brown colour/color, like that of chocolate (also called chocolate brown). 

  • A black person; (uncountable) blackness. 

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