disperse vs synthesize

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. 

synthesize

verb
  • To be combined producing a new, more complex product. 

  • To produce a substance by chemical synthesis. 

  • To combine two or more things to produce a new product. 

  • To be produced by chemical synthesis. 

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