motley vs multiracial

motley

adj
  • Having many colours; variegated. 

  • Comprising greatly varied elements, to the point of incongruity. 

noun
  • A jester's multicoloured clothes. 

  • An incongruous mixture. 

  • A jester; a fool. 

multiracial

adj
  • Composed of, or having a mixture of, multiple races. 

noun
  • An individual of more than one race. 

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