v. i. - To be agitated with quick, short motions continually repeated; to shake with fear, cold, etc.; to shudder; to tremble.
v. i. - To shake, vibrate, or quiver, either from not being solid, as soft, wet land, or from violent convulsion of any kind; as, the earth quakes; the mountains quake.
v. t. - To cause to quake.
n. - A tremulous agitation; a quick vibratory movement; a shudder; a quivering.