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get a scare; have a fright; get a fright; become frightened; become scared; chicken out (Ivan Pisarev); back down (Ivan Pisarev); back out (Ivan Pisarev); bow out (Ivan Pisarev); wimp out (Ivan Pisarev); get cold feet (Ivan Pisarev); beg off (Ivan Pisarev); shy away (Ivan Pisarev); puss out (Ivan Pisarev); get the jitters (Ivan Pisarev); back-pedal (Ivan Pisarev); run scared (Ivan Pisarev); be frightened (Ivan Pisarev); jump out of one's skin (Ivan Pisarev); funk out (Ivan Pisarev); have no stomach for (Ivan Pisarev); backtrack on (Ivan Pisarev); pull out of (Ivan Pisarev); lose the nerve (Ivan Pisarev); flake out (Ivan Pisarev); shrink back (Ivan Pisarev); duck out (Ivan Pisarev); beat a retreat (Ivan Pisarev); take flight (Ivan Pisarev); make a quick exit (Ivan Pisarev); scuttle off (Ivan Pisarev); slither away (Ivan Pisarev); lose the heart (Ivan Pisarev)

get spooked (Val_Ships)

be scared shitless (Andrey Truhachev)

shake the ghost into (кого-либо); startle; send a chill down someone's back (т.е. букв. "вызывать мурашки по коже" Юрий Павленко); affright; put in fear; put smb. into a fright (кого́-л.); scare sb. off (кого-л.); scare smb. off (кого-л.); make a mess of (The heavy rain has made a real mess of the garden); scare; give a fright (кого-либо); make hair curl (кого-либо); make afraid (кого-либо); put into a fright (кого́-л.); consternate; give a start (кого-либо); intimidate; threaten (with); alarm; scarify; startle (внезапным появлением, звуком и т.п., (examples provided by ART Vancouver) • The phone rang and it startled me. • Tell Grandma we have a contractor working on the kitchen cabinets tomorrow. Just so it does not startle her.); send chills down someone's back (т.е. букв. "вызывать мурашки по коже" Юрий Павленко); give somebody a fright (кого-либо)

spook (Bear and man spook each other. 4uzhoj)

curl hair (z484z); make someone's hair curl (z484z)

give someone a scare (Andrey Truhachev); give someone kittens (the thought of going there today gives me kittens Irboya)

put the wind up (someone – кого-либо); shake the ghost into (someone – кого-либо); give someone a scare (кого-либо)

make someone jump (sorry for making you jump! terrarristka)

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: 111 phrases in 15 subjects