concussion

noun3

1. •
   An injury to part of the body, most especially the brain, caused by a violent blow, followed by loss of function.
2. •
   A violent collision or shock.

   • It is believed that great ringing of bells, in populous cities, hath dissipated pestilent air; which may be from the concussion of the air. — 1627
3. •
   (no longer used) The unlawful forcing of another by threats of violence to yield up something of value.

   • Then Concussion, Rapine, Pillories, / Their Catalogue of Accusations fill. — 1595