nicor

plural nicors

1. fantasyA sea monster.

   “I also had the good luck to kill nine sea prowlers, or nicors.”

   1961, Norma Lorre Goodrich, “Beowulf”, in The Medieval Myths, New York: The New American Library, page 27

   2 more examples

   The beautiful Nix or Nixie who allures the young fisher or hunter to seek her embraces in the wave which brings his death, the Neck who seizes upon and drowns the maidens who sport upon his banks, the river-spirit who still yearly in some parts of Germany demands tribute of human life, are all forms of the ancient Nicor[.]

   1876, John Mitchell Kemble, The Saxons in England: A History of the English Commonwealth Till the Period of the Norman Conquest, volume I, London: Bernard Quaritch, page 391

   And the conquest of the ogres comes at the right moment: not in earliest youth, though the nicors are referred in Beowulf's geogoðfeore as a presage of the kind of hero we have to deal with[.]

   1936, J. R. R. Tolkien, Beowulf: The Monsters and the Critics, Norwood, Pa.: Norwood Editions, published 1976, page 32