festing

Etymology
From.

Noun

 * 1) fastening, fastener, something which fastens
 * 2) firmament
 * 3) * Genesis 1-3 (English, Icelandic)
 * Guð sagði: „Verði festing milli vatnanna, og hún greini vötn frá vötnum.“
 * And God said, Let there be a firmament in the midst of the waters, and let it divide the waters from the waters.