Which preposition to use with unsprung

with Occurrences 1%

the hopeless mourner cried Upturn'd his eyes, and clasp'd his hands, and sigh'd; Stretch'd on the ground awhile entranc'd he lay, 320 And press'd warm kisses on the lifeless clay; And then unsprung with wild convulsive start, And all the Father kindled in his heart; "Oh, Heavens!"

Which preposition to use with  unsprung