fleck vs maculation

fleck

noun
  • A small spot or streak; a speckle. 

  • A lock, as of wool. 

  • A flake. 

  • A small amount. 

verb
  • To mark (something) with small spots. 

maculation

noun
  • A pattern of spots. 

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