disperse vs upheave

disperse

verb
  • To disseminate. 

  • To break up and disappear; to dissipate. 

  • To scatter in different directions. 

  • To separate rays of light, etc., according to wavelength; to refract. 

  • To distribute throughout. 

adj
  • Scattered or spread out. 

upheave

verb
  • To be lifted up; rise. 

  • To lift or thrust something upward forcefully, or be similarly lifted or thrust upward. 

  • To heave or lift up; raise up or aloft. 

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