consolidate vs disperse

consolidate

verb
  • To make stronger or more solid. 

  • With respect to debt, to pay off several debts with a single loan. 

  • To combine into a single unit; to group together or join. 

disperse

adj
  • Scattered or spread out. 

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. 

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