hebetate vs relax

hebetate

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

adj
  • obtuse; dull 

  • Having a dull or blunt and soft point 

relax

verb
  • To make something less severe or tense. 

  • To become loose. 

  • To become less severe or tense. 

  • To make something (such as codes and regulations) more lenient. 

  • To calm down. 

  • To relieve (something) from stress. 

  • To make something loose. 

  • To become more lenient. 

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