shudder

n 1: an almost pleasurable sensation of fright; "a frisson of

surprise shot through him" [syn: {frisson}, {shiver}, {chill},

{quiver}, {thrill}, {tingle}]

2: an involuntary vibration (as if from illness or fear) [syn:

{tremor}]

v 1: shake, as from cold or fear [syn: {shiver}, {dither}]

2: tremble convulsively [syn: {shiver}, {throb}, {thrill}]