Webster’s Revised Unabridged Dictionary · 1913
Startle
Star′tle (stär′t'l), v. t. [imp. & p. p. Startled; p. pr. & vb. n. Startling.] [Freq. of start.] To move suddenly, or be excited, on feeling alarm; to start.
Why shrinks the soul Back on herself, and startles at destruction? Addison.
Star′tle (stär′t'l), v. t. 1. To excite by sudden alarm, surprise, or apprehension; to frighten suddenly and not seriously; to alarm; to surprise.
The supposition, at least, that angels do sometimes assume bodies need not startle us. Locke.
2. To deter; to cause to deviate. [R.] Clarendon.
Syn. — To start; shock; fright; frighten; alarm.
Star′tle, n. A sudden motion or shock caused by an unexpected alarm, surprise, or apprehension of danger.
After having recovered from my first startle, I was very well pleased with the accident. Spectator.