amalgamate vs disperse

amalgamate

verb
  • To combine (free groups) by identifying respective isomorphic subgroups. 

  • To merge, to combine, to blend, to join. 

  • To make an alloy of a metal and mercury. 

adj
  • Coalesced; united; combined. 

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. 

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