spook
funk
send shivers down someone's spine
put the heart across one
scarecrow
make someone's hair stand on end
panic
piggle
curl someone's hair
shit oneself
flay
spook out
dismay
appal
horrify
jump in one's skin
take fright
alarm
jitter
appall
fray
frighten
quake in one's boots
get the wind up
have the wind up
make someone's jaw drop
geek out
freak out
rattle
perturb
disquiet
cark
unhinge
frighten the piss out of
trouble
distract
surprise
give someone the creeps
disorder
make someone's skin crawl
put the shits up someone
begruntle
have kittens
run scared
scare the living daylights out of
fuss
startle
fear
white-knuckle