disappoint vs hebetate

disappoint

adj
  • disappointed 

verb
  • To deprive (someone of something expected or hoped for). 

  • To sadden or displease (someone) by underperforming, or by not delivering something promised or hoped for. 

hebetate

adj
  • obtuse; dull 

  • Having a dull or blunt and soft point 

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

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