disperse vs solidify

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. 

solidify

verb
  • To make solid; convert into a solid body. 

  • To become solid; to freeze, set. 

  • To concentrate; consolidate. 

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