shudder
noun
°A shivering tremor.
°A moment of almost pleasurable fear; a frisson.
verb
°To shake nervously, as if from fear.
°To vibrate jerkily.
synonyms: jiggle, quake, rumble, quiver more» , shiver, tingle, thrill, palpitate, shiver, shake, quake, flutter, jiggle, wiggle