 Because it was a constructed (though living) language, it was not descended from any form of Elvish, as most of the languages of Men were, although it is suggested that the language may have had influence on the early languages of Men.Khuzdul was for the most part a closely guarded tongue (one of the few recorded outsiders to have a knowledge of it was Eöl), and the Dwarves never revealed their Khuzdul names to outsiders, going so far as to omit them from even their tombs.Khuzdul was written in Cirth, a runic alphabet developed by the Elves.