Kenning p. pr. & vb. n. : of Ken

Kenning v. t. : Range of sight.

Kenning v. t. : The limit of vision at sea, being a distance of about twenty miles.

Example:
What is the difference between a stock epithet and a Kenning?

Taxonomy
Old Norse, Faulkes, determinant, gold, Old English, compound word, List of kennings, element, kenna, warrior, Brodeur, goddess, Beowulf, poet, battle, referent, fire, hawk.

Defination from the web:
kenning (base-word or determinant or both) could consist of an ordinary noun or else a heiti "poetic synonym" ... Some scholars take the term kenning broadly to include any noun-substitute consisting of two or more elements, including merely descriptive ...