[ 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.

Nearby words

  1. amaryllis,
  2. amaryllis family,
  3. amarynceus,
  4. amasa,
  5. amasias,
  6. amastia,
  7. amastigote,
  8. amata,
  9. amate,
  10. amaterasu

Origin of amass

1475–85; < French amasser, equivalent to a- a-5 + masse mass + -er infinitive suffix

Related forms Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for amassed

British Dictionary definitions for amassed


/ (əˈmæs) /


(tr) to accumulate or collect (esp riches, etc)
to gather in a heap; bring together
Derived Formsamasser, noun

Word Origin for amass

C15: from Old French amasser, from masse mass

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

Word Origin and History for amassed



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