Ge-fylstan

According to the Old English Dictionary:

ic -fylste;

ge-fylstan

subj. pres. -fylste; p. [-fylstede], -fylste, pl. -fylston; pp. fylsted To help, give help; adjuvare :-- Ðæt heó him gefylste that she might assist them, Ors. 3, 11; Bos. 73, 45. God gefylsteþ me Deus adjuvat me, Ps. Spl. 53, 4. Driht, to gefylstan me efste Domine, ad adjuvandum me festina, 69, 1. DER fylstan. ge-fylstan