hebetate vs hush

hebetate

verb
  • To render obtuse; to dull; to blunt. 

adj
  • obtuse; dull 

  • Having a dull or blunt and soft point 

hush

verb
  • To become quiet. 

  • To make quiet. 

  • To appease; to allay; to soothe. 

  • To clear off soil and other materials overlying the bedrock. 

noun
  • A mining method using water 

  • A silence, especially after some noise 

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