The following adjectives are in groups, this is how you should put them in your notebooks when you add vocabulary.
Don’t just put the adjective, put the dependent preposition also.
To make someone start or jump means to take them by surprise.
Scared silly of/by
Scared stupid of/by
Scared witless of/by
Scared stiff of/by
Frightened silly of/by
Frightened stiff of/by