Definitions for "Startle"
To move suddenly, or be excited, on feeling alarm; to start.
To excite by sudden alarm, surprise, or apprehension; to frighten suddenly and not seriously; to alarm; to surprise.
A sudden motion or shock caused by an unexpected alarm, surprise, or apprehension of danger.
Keywords:  deter, deviate, cause
To deter; to cause to deviate.
to stimulate to action ; "..startled him awake"; "galvanized into action"