concuss

concuss

[kuhn-kuhs]
verb (used with object)
to injure by concussion: He was mildly concussed by the falling books.

Origin:
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

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World English Dictionary
concuss (kənˈkʌs)
 
vb
1.  to injure (the brain) by a violent blow, fall, etc
2.  to shake violently; agitate; disturb
 
[C16: from Latin concussus violently shaken, from concutere to disturb greatly, from quatere to shake]

Collins English Dictionary - Complete & Unabridged 10th Edition
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Etymonline
Word Origin & History

concuss
1590s, "to shake violently," from L. concuss-, pp. stem of concutere "to dash together" (see concussion). Meaning "to give a concussion to the brain" is from 1680s. Related: Concussed "violently shaken" (1590s).
Online Etymology Dictionary, © 2010 Douglas Harper
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