Fǽringa

According to the Old English Dictionary:

fǽrincga, fǽrunga, fǽrunge;

fǽringa

adv. [fǽr sudden, -inga, -unga adverbial terminations] Suddenly, quickly, by chance; sŭbĭto, repente, forte :-- Fǽringa hí geteorodon sŭbĭto defēcērunt, Ps. Spl. C. 72, 19. Ðú fǽringa gehogodest sæcce sécean thou suddenly resolvedst to seek conflict, Beo. Th. 3980; B. 1988: Exon. 46 b; Th. 158, 20; Gú. 911: Bt. Met. Fox 28, 82; Met. 28, 41. Ðonne he fǽringa cymþ cum vēnĕrit repente, Mk. Bos. 13, 36. Fǽrincga fýr wudu byrneþ fire quickly burneth a wood, Ps. Th. 82, 10. færinga