amass vs garner

amass

verb
  • To accumulate; to assemble. 

  • to gather a great quantity of; to accumulate. 

  • To collect into a mass or heap. 

garner

verb
  • To gather or become gathered; to accumulate or become accumulated; to become stored. 

  • To gather, amass, hoard, as if harvesting grain. 

  • To reap grain, gather it up, and store it in a granary. 

  • To earn; to get; to accumulate or acquire by some effort or due to some fact 

noun
  • An accumulation, supply, store, or hoard of something. 

  • A granary; a store of grain. 

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