Fífel

According to the Old English Dictionary:

es;

fífel

n? m? A sea-monster, monster, giant; monstrum mărīnum, gĭgas :-- Þurh fífela gefeald forþ onette through the field of the monsters he hastened forth, Wald. 76; Vald. 2, 10. [Icel. fífl, m. I. a fool, clown, boor. II. a monster, giant.] fifel