chocolate vs umber

chocolate

adj
  • Having a dark reddish-brown colour/color. 

  • Made of or containing chocolate. 

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

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. 

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. 

umber

adj
  • Of a reddish brown colour, like that of the pigment. 

noun
  • A dusky brown African wading bird (Scopus umbretta) allied to the shoebill and herons; a hamerkop. 

  • A grayling. 

  • A brown clay, somewhat darker than ochre, which contains iron and manganese oxides. 

verb
  • To give a reddish-brown colour to. 

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