shudders
shud-ders
verb
Experiences involuntary trembling, typically from fear, cold, or revulsion.
"He shudders at the thought of spiders."
noun
Plural instances of involuntary trembling, often caused by fear or disgust.
"Cold shudders ran down her spine."
Thesaurus
Synonyms: thrill, shiver, frisson, chill, tingle, quiver, throb, tremor