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[verb ree-hash; noun ree-hash]
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verb (used with object)
  1. to work up (old material) in a new form.
  1. the act of rehashing.
  2. something rehashed.

Origin of rehash

First recorded in 1815–25; re- + hash1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for rehash


verb (riːˈhæʃ)
  1. (tr) to rework, reuse, or make over (old or already used material)
noun (ˈriːˌhæʃ)
  1. something consisting of old, reworked, or reused material

Word Origin

C19: from re- + hash 1 (to chop into pieces)
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 rehash


1822, from re- "again" + hash (v.). Related: Rehashed; rehashing.


1849, from rehash (v.); "old material worked up anew," usually of literary productions.

Online Etymology Dictionary, © 2010 Douglas Harper