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[uh-mas] /əˈmæs/
verb (used with object)
to gather for oneself; collect as one's own:
to amass a huge amount of money.
to collect into a mass or pile; gather:
He amassed his papers for his memoirs.
verb (used without object)
to come together; assemble:
crowds amassing for the parade.
Origin of amass
1475-85; < French amasser, equivalent to a- a-5 + masse mass + -er infinitive suffix
Related forms
amassable, adjective
amasser, noun
amassment, noun
reamass, verb (used with object)
reamassment, noun
unamassed, adjective
1. accumulate. 2. assemble, aggregate. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2016.
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Examples from the Web for amassing
Contemporary Examples
Historical Examples
  • Even if he were successful in amassing wealth untold, yet they two must be as far apart as ever.

    The Sign of the Spider Bertram Mitford
  • We have been amassing wealth too often selfishly, and madly.

  • Sole dispenser of money, it cannot omit the oldest and most obvious means of amassing wealth by the flux and reflux of paper.

  • He pushed his mercantile business for years, amassing an immense fortune.

    Hidden Treasures Harry A. Lewis
  • Mike took John down to his coal-docks, with which he was amassing a fortune, and explained their workings.

    The Grain Ship Morgan Robertson
British Dictionary definitions for amassing


(transitive) to accumulate or collect (esp riches, etc)
to gather in a heap; bring together
Derived Forms
amasser, noun
Word Origin
C15: from Old French amasser, from massemass
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for amassing



late 15c., "to heap up for oneself," from Old French amasser, from à "to" (see ad-) + masser (see mass (n.1)). Related: Amassed; amassing.

Online Etymology Dictionary, © 2010 Douglas Harper
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