mixing vs motley

mixing

noun
  • The act, or the result of making a mixture. 

adj
  • Of a stochastic process, to be asymptotically independent (in a precise mathematical sense). 

motley

noun
  • An incongruous mixture. 

  • A jester's multicoloured clothes. 

  • A jester; a fool. 

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

  • Having many colours; variegated. 

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