Orcen

According to the Old English Dictionary:

(?)

orcen

a sea-monster :-- Ðanon untydras ealle onwócon, eotenas and ylfe and orcneas [orcenas (?). Grein reads orc-néas, with which compare orc-þyrs under orc] swylce gigantas, Beo. Th. 225; B. 112. [Cf. (?) Icel. orkn (örkn) a kind of seal.] orcen