See terrify in Webster's New World Roget's A-Z Thesaurus II
verb
To fill with fear:
affright, alarm, frighten, panic, scare, scarify2, startle, terrorize. (Archaic) fright. Idioms: make one's blood run cold, make one's hair stand on end, scare silly (or stiff), scare the daylights out of. See fear
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