Khuzdul

Khuzdul was the language of the Dwarves, written in the 50-letter Cirth script (Runes). It appears to be structured, like real-world Semitic languages, around the triconsonantal roots: kh-z-d, b-n-d, z-g-l.
== History ==
The language was created by the Vala Aulë, the creator of the first Dwarves, who taught them "the language he had devised for them," implying that Khuzdul is a constructed language even within context of the books. The language was rarely heard by outsiders and was a secret, and was thus not recorded by Elves or Men. The Lhammas tells that Khuzdul uniquely derives from the separate language family "Aulëan" (named after Aulë), separate from the "Oromëan" family that supersedes the Eldarin languages.
The only Khuzdul line in J.R.R. Tolkien's primary writings is Gimli's battle-cry Baruk Khazâd! Khazâd ai-mênu!, meaning, "Axes of the Dwarves! The Dwarves are upon you!".
In the early days of Middle-earth, before Men entered Beleriand, they had contact with the Dwarves of the Blue Mountains and further East, and the Taliska language was devised, similar to the Dwarven tongue. Taliska would be the ancestor of Adûnaic, the later tongue of Númenor, and of the Common Speech.