hebetate vs throw off

hebetate

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

adj
  • obtuse; dull 

  • Having a dull or blunt and soft point 

throw off

verb
  • To introduce errors or inaccuracies; to skew. 

  • To expel, reject, or renounce. 

  • To give forth in an unpremeditated manner. 

  • Of a horse, to eject its rider. 

  • To confuse; especially, to lose a pursuer. 

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