shiver (
http://definr.com/shiver)
n 1: reflex shaking caused by cold or fear or excitement [syn:
tremble,
shake]
2: an almost pleasurable sensation of fright; "a frisson of
surprise shot through him" [syn:
frisson,
chill,
quiver,
shudder,
thrill,
tingle]
v 1: tremble convulsively [syn:
shudder,
throb,
thrill]
2: shake, as from cold or fear [syn:
shudder,
dither]