the world > movement > motion in a certain direction > backward movement > move backwards [verb (intransitive)] > start or spring back (4)
intransitive. Of an object: to move suddenly as though with a leap; esp. to spring back, to rebound; to bounce (in early use chiefly with again)…
intransitive to start back, recoil.
To start, flinch, or shrink. (Now the principal general sense.) intransitive. To start or spring back in fear, horror, disgust, or the like.
intransitive. To awake with a start; to move suddenly in a surprised or frightened manner; (esp. of an animal) to start up suddenly from a…