frighten/scare somebody out of their wits

frighten (one) out of (one's) wits

To shock or scare one very suddenly and/or severely. Hyperbolically alludes to frightening one so severely as to cause them to become insane. Don't sneak up on me like that, you frightened me out of my wits! That car accident seems to have frightened Janet out of her wits—she's still shaken by it.

See also: frighten, of, out, wit

scare (one) out of (one's) wits

To shock or scare someone very suddenly and/or severely. (Hyperbolically alludes to frightening someone so severely as to cause them to lose their mind.) Don't sneak up on me like that, you scared me out of my wits! That car accident seems to have scared Janet out of her wits—she's still shaken by it.

See also: of, out, scare, wit

frighten/scare somebody out of their ˈwits

frighten somebody very much: I was scared out of my wits when I looked out of the window and saw the aircraft’s engine on fire.

See also: frighten, of, out, scare, somebody, wit