Emily Dickinson Lexicon

WINCE, v.i. [Fr. guincher, to twist; guingois, crookedness, W. gwing; gwingaw, to wriggle, to wince.]

1. To shrink, as from a blow or from pain; to start back. I will not stir nor wince. – Shak.
2. To kick or flounce when uneasy, or impatient of a rider; as, a horse winces. – Hudibras.