visna

Etymology
From, from ,.

Verb

 * 1)  to wither, to dry up
 * 2) * Isaiah 40 (Icelandic, English)
 * Heyr, einhver segir: "Kalla þú!" Og ég svara: "Hvað skal ég kalla?" "Allt hold er gras og allur yndisleikur þess sem blóm vallarins. Grasið visnar, blómin fölna, þegar Drottinn andar á þau. Sannlega, mennirnir eru gras. Grasið visnar, blómin fölna, en orð Guðs vors stendur stöðugt eilíflega."
 * A voice says, "Cry out." And I said, "What shall I cry?" "All men are like grass, and all their glory is like the flowers of the field. The grass withers and the flowers fall, because the breath of the LORD blows on them. Surely the people are grass. The grass withers and the flowers fall, but the word of our God stands forever."

Etymology
From the adjective. This derivation could also have taken place at an earlier stage in the linguistic history.

Verb

 * 1)  to wither