/ah"tef krown'/ , n.
a symbolic headdress of certain Egyptian gods, as Osiris, and of Egyptian kings, consisting of a tall conical cap flanked by two plumes and bearing representations of the uraeus and the sun.
[ atef, vocalization of Egyptian yt father + the f -symbol (a horned viper), orig. taken as part of the word, but now thought to be a nonphonetic determinative ]