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[kuh n-kuhs] /kənˈkʌs/
verb (used with object)
to injure by concussion:
He was mildly concussed by the falling books.
Origin of concuss
1590-1600; < Latin concussus, past participle of concutere, equivalent to con- con- + -cut-, combining form of quat-, stem of quatere to shake + -tus past participle ending Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2016.
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Examples from the Web for concussed
Historical Examples
  • The wagon tipped over and concussed a keg of blasting powder, and that obliterated the rest of the goods.

    Remarks Bill Nye
  • concussed and bloody, he had just enough drive left to get himself out.

    Deathworld Harry Harrison
  • But as I am a slight man it might have been my brain that got concussed.

  • At length the learned doctor was concussed by his colleagues on the subject, and he condescended to notice it.

British Dictionary definitions for concussed


verb (transitive)
to injure (the brain) by a violent blow, fall, etc
to shake violently; agitate; disturb
Word Origin
C16: from Latin concussus violently shaken, from concutere to disturb greatly, from quatere to shake
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 concussed



1590s, "to shake violently," from Latin concuss-, past participle stem of concutere "to dash together, shake violently" (see concussion). Meaning "to give a concussion to the brain" is from 1680s. Related: Concussed; concussing; concussive.

Online Etymology Dictionary, © 2010 Douglas Harper
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