harsh vs hibernal

harsh

adj
  • Severe or cruel. 

  • Unpleasantly rough to the touch or other senses. 

verb
  • To negatively criticize. 

  • To put a damper on (a mood). 

hibernal

adj
  • Of or pertaining to winter; brumal or hiemal 

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