Foul'der, v. i.

v. i. [O. Eng. foulder, lightning, from O. Fr. fouldre, N. Fr. foudre, lightning, Pr. foldre, from Lat. fulgor, It. folgore.] To flame, as lightning; to lighten; to gleam. [Obs.] Seemed that loud thunder, with amazement great, Did rend the rattling skies with flames of fouldering heat. Spenser.