I.a shaking, concussion.
I. In gen.: “vasorum,” Col. 9, 14 fin.: “assidua facium,” Plin. Ep. 4, 9, 11: “vasta concussio quae duas suppressit urbes,” an earthquake, Sen. Q. N. 6, 25, 4.—
II. In jurid. Lat., an extortion of money by means of threats, Dig. 47, 13: de concussione, several times; also Tert. ad Scap. 4 sq.