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rebut

[ri-buht]
verb (used with object), re·but·ted, re·but·ting.
  1. to refute by evidence or argument.
  2. to oppose by contrary proof.
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verb (used without object), re·but·ted, re·but·ting.
  1. to provide some evidence or argument that refutes or opposes.
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Origin of rebut

1250–1300; Middle English reb(o)uten < Old French rebouter, equivalent to re- re- + bouter butt3
Related formsre·but·ta·ble, adjectiveun·re·but·ta·ble, adjectiveun·re·but·ted, adjective
Can be confuseddeny disapprove disprove rebut refute

Synonyms

1. disprove, confute.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for un-rebutted

rebut

verb -buts, -butting or -butted
  1. (tr) to refute or disprove, esp by offering a contrary contention or argument
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Derived Formsrebuttable, adjectiverebuttal, noun

Word Origin

C13: from Old French reboter, from re- + boter to thrust, butt ³
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 un-rebutted

rebut

v.

c.1300, "to thrust back," from Old French reboter, rebuter "to thrust back," from re- "back" (see re-) + boter "to thrust, hit" (see butt (v.)). Legalese sense of "try to disprove, refute by evidence or argument" is from 1817. Related: Rebutted; rebutting.

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Online Etymology Dictionary, © 2010 Douglas Harper