scare someone or something away (from someone or something)
to frighten someone or something away from someone or something. He put on a gruff exterior to scare everyone away from him. The bear scared away a lot of people from the campground.
to cause someone or something to go or stay away scare off somebody/somethingVideo cameras may be helpful to police, but they do not scare away robbers.He scared them away by yelling and firing into the air.
To cause someone or something to leave or to stay away due to fear: The kidnappings have scared tourists away. The farmer put up a scarecrow to scare away the birds.