hoar vs mousy

hoar

adj
  • Of a white or greyish-white colour. 

  • Hoarily bearded. 

noun
  • A white or greyish-white colour. 

  • Hoariness; antiquity. 

mousy

adj
  • Of a greyish-brown colour. 

  • Abounding in or infested with mice. 

  • mousy 

  • Timid. 

  • Quiet; stealthy. 

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