concussion

From concuss +‎ -ion From the Latin concussio.

• IPA^(key): /kənˈkʌʃən/, /kənˈkʌʃn/

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concussion (countable and uncountable, plural concussions)

1. A violent collision or shock.
   • 1631, Francis [Bacon], “(please specify |century=I to X)”, in Sylua Syluarum: Or A Naturall Historie. In Ten Centuries. […], 3rd edition, London: […] William Rawley; [p]rinted by J[ohn] H[aviland] for William Lee […], OCLC 1044372886:

     It is believed that great ringing of bells, in populous cities, hath dissipated pestilent air; which may be from the concussion of the air.

2. (uncountable in Commonwealth, countable in Canada, US) An injury to part of the body, most especially the brain, caused by a violent blow, followed by loss of function.
3. (obsolete, law, civil law) The unlawful forcing of another by threats of violence to yield up something of value.
   • 1595, Samuel Daniel, “(please specify the folio number)”, in The First Fowre Bookes of the Ciuile Wars between the Two Houses of Lancaster and Yorke, London: […] P[eter] Short for Simon Waterson, OCLC 28470143:

     Then Concussion, Rapine, Pillories, / Their Catalogue of Accusations fill.

• concussion fuse
• concussion grenade
• post-concussion syndrome

• concuss
• quash

concussion in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913

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concussion f (plural concussions)

1. political corruption, misappropriation

• “concussion”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012.