Definitions for "Atef"
the white crown of upper Egypt with red feathers added on each side; sometimes seen in the form of the Hemhem, or triple atef crown
One of Osiris' characteristic hats, made up of a miter crowned with a solar disk flanked by two ostrich plumes.
crown resembles the crown of Upper Egypt with an ostrich plume on each side and horizontal ram's horns underneath; worn by Osiris, to symbolize his triumph over death, and by the king in certain rituals