cumulate vs dissipate

cumulate

verb
  • To accumulate; to amass. 

  • To be accumulated. 

adj
  • accumulated, agglomerated, amassed 

noun
  • An igneous rock formed by the accumulation of crystals from a magma either by settling or floating. 

dissipate

verb
  • To drive away, disperse. 

  • To use up or waste; squander. 

  • To vanish by dispersion. 

  • To cause energy to be lost through its conversion to heat. 

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