mouton vs treddle

mouton

noun
  • Sheepskin processed to resemble beaver or seal fur. 

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

treddle

noun
  • The dung of sheep or hares. 

  • A prostitute; strumpet. 

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