disperse vs evanesce

disperse

verb
  • To break up and disappear; to dissipate. 

  • To scatter in different directions. 

  • To disseminate. 

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

  • To distribute throughout. 

adj
  • Scattered or spread out. 

evanesce

verb
  • To disappear into a mist or dissipate in vapor 

  • To transition from the solid state to gaseous state without ever becoming a liquid 

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