accumulate vs dissipate

accumulate

adj
  • Collected; accumulated. 

verb
  • To gradually grow or increase in quantity or number. 

  • To heap up in a mass; to pile up; to collect or bring together (either literally or figuratively) 

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 accumulate and dissipate occurred in a corpus of books? (source: Google Ngram Viewer )