goatmeat vs mouton

goatmeat

noun
  • The meat of a goat, used as food; chevon. 

mouton

noun
  • Sheepskin processed to resemble beaver or seal fur. 

  • A 14th-century French gold coin, weighing about 70 grains. 

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