(A). A sea-devil, in Scandinavian mythology, who eats sailors.
“My brother saw a nicor in the Northern sea. It was three fathoms long, with the body of a bison-bull, and the head of a cat, the beard of a man, and tusks an ell long, lying down on its breast. It was watching for the fishermen.” —
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894