flabbergast vs hebetate

flabbergast

verb
  • To overwhelm with bewilderment; to amaze, confound, or stun, especially in a ludicrous manner. 

noun
  • An awkward person. 

  • Overwhelming confusion, shock, or surprise. 

hebetate

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

adj
  • obtuse; dull 

  • Having a dull or blunt and soft point 

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