v. 25B6; verb SURPRISE, frighten, scare, alarm, give someone a shock/fright/jolt, make someone jump; PERTURB, unsettle, agitate, disturb, disconcert, disquiet; informal give someone a turn, make someone jump out of their skin.
put at ease.
STARTLE
Meaning of STARTLE in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012