Luwian, sometimes known as Luvian or Luish, is an ancient language, or group of languages, within the Anatolian branch of the Indo-European language family. The ethnonym Luwian comes from Luwiya – the name of the region in which the Luwians lived. Luwiya is attested, for example, in the Hittite laws.
Luwian hieroglyph BOS (cow)
Stele of Sultanhan, Museum of Anatolian Civilizations, Ankara.
The Anatolian languages are an extinct branch of Indo-European languages that were spoken in Anatolia, part of present-day Turkey. The best known Anatolian language is Hittite, which is considered the earliest-attested Indo-European language.
Early Indo-European migrations from the Pontic–Caspian steppe
Inscriptions in Sidetic language, exhibits of the Museum of Side, Turkey