Viður

The Icelandic word "viður" is a noun.

Noun
viður m.
 * wood (group of trees), lumber

Declension
Phrase: "Sólin er gengin til viðar" = The sun has gone down.

(Lit: The sun is walking towards a wood.)

Word Form
viða f.
 * Nominative Plural indefinite
 * Accusative Plural indefinite