intransitive. To start up.

intransitive. To move with a bound or sudden impulse from a position of rest or repose; (also) to come suddenly from or out of a place of…

intransitive. Esp. of an animal: to spring or rise up suddenly. Frequently with up. Obsolete (Scottish and English regional (northern) in later use).

(intransitive) to start suddenly.

intransitive. To shoot or spring up. Also of persons: To brighten or cheer up.

To move suddenly with a leap, bound, or the like movement; to ‘spring’, ‘dart’, ‘shoot’.

intransitive. To jump up or depart suddenly; to move quickly in an excited or reckless manner. Also with about, around.