Amass Definition
 ə-măs 
  amassed, amasses, amassing
  
    verb
  
 
    amassed, amasses, amassing
  
To gather together or accumulate a large quantity of (something).
 Amass evidence; amass a fortune.
 American Heritage 
To pile up; collect together.
 Webster's New World 
To be the site of (an increasing mass), especially as a result of neglect.
 How long has the desk been amassing bills?
 American Heritage 
To accumulate (esp. wealth)
 Webster's New World 
To come together; collect.
 Troops amassing on the border.
 American Heritage 
Synonyms: 
  
    noun
  
 (obsolete) A mass; a heap.
 Wiktionary 
Origin of Amass
-  
Middle English to accumulate from Old French amasser to assemble a- to (from Latin ad- ad–) masser to gather together (from Latin massa lump, mass mass)
From American Heritage Dictionary of the English Language, 5th Edition
 -  
French amasser, Late Latin amassare, ad + massa (“lump, mass”). See mass.
From Wiktionary
 
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