Fylst

According to the Old English Dictionary:

e;

FYLST

f. Help, assistance; auxĭlium :-- Mid Godes fylste with God's help, Bt. Met. Fox 23, 14; Met. 23, 7: Ors. 1, 12; Bos. 35, 20. [Laym. fulste, vulste aid, help: O. Frs. fulliste, folliste, folste, aid.] [Cf. fullǽst.] fylst