CONCUSS
Con*cuss", v. t. Etym: [L. concussus, p. p. of concutere. See
Concussion.]

1. To shake or agitate. "Concussed with uncertainty." Daniel.

2. (Law)

Defn: To force (a person) to do something, or give up something, by intimidation; to coerce. Wharton.

CONCUSSATION
Con`cus*sa"tion, n.

Defn: A violent shock or agitation. [Obs.] Bp. Hall.

CONCUSSION Con*cus"sion, n. Etym: [L. concussio, fr. concutere, concussum, to shake violenty; con- + quatere to shake. See Cashier, Quash.]

1. A shaking or agitation; a shock; caused by the collision of two bodies. It is believed that great ringing of bells, in populous cities, hath dissipated pestilent air; which may be from the concussion of the air. Bacon.

2. (Med.)

Defn: A condition of lowered functional activity, without visible structural change, produced in an organ by a shock, as by fall or blow; as, a concussion of the brain.