Luwian language
Luwian was the language of the Luwian people. It is ordered under the Anatolian branch of the Indo-European languages. It died around 600 BCE. Linguists believe that it had two laryngeal consonants inherited from Indo-European, because their cuneiform writing had two symbols that represent laryngeal sounds.
Further reading
Luwian Language Media
Stele of Sultanhan, Museum of Anatolian Civilizations, Ankara
Basalt bowl with engraved inscription in Luwian hieroglyphics found in Babylon, southern Iraq in the 1880s and now in the collection of the British Museum
Luwian Hieroglyph za
"The Luwian Language" (PDF). Ilya Yakubovich, Marburg.