amass vs decide

amass

verb
  • To accumulate; to assemble. 

  • to gather a great quantity of; to accumulate. 

  • To collect into a mass or heap. 

decide

verb
  • to resolve (a contest, problem, dispute, etc.); to choose, determine, or settle 

  • to make a judgment, especially after deliberation 

  • to cause someone to come to a decision 

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