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 (also spelled Luwia or Luvia) – the name of the region in which the Luwians lived. Luwiya is attested, for example, in the Hittite laws.
The two varieties of Proto-Luwian or Luwian (in the narrow sense of these names) are known after the scripts in which they were written: Cuneiform Luwian (CLuwian) and Hieroglyphic Luwian (HLuwian). There is no consensus as to whether these were a single language or two closely related languages.
Classification
Several other Anatolian languages – particularly Carian, Lycian, and Milyan (also known as Lycian B or Lycian II) – are now usually identified as related to Luwian – and as mutually connected more closely than other constituents of the Anatolian branch. This suggests that these languages formed a sub-branch within Anatolian. Some linguists follow Craig Melchert in referring to this broader group as Luwic, whereas others refer to the "Luwian group" (and, in that sense, "Luwian" may mean several distinct languages). Likewise, Proto-Luwian may mean the common ancestor of the whole group, or just the ancestor of Luwian (normally, under tree-naming conventions, were the branch to be called Luwic, its ancestor should be known as Proto-Luwic or Common Luwic; in practice, such names are seldom used). Luwic or Luwian (in the broad sense of the term), is one of three major sub-branches of Anatolian, alongside Hittite and Palaic.
As Luwian has numerous archaisms, it is regarded as important to the study of Indo-European languages (IE) in general, the other Anatolian languages, and the Bronze Age Aegean. These archaisms are often regarded as supporting the view that the Proto-Indo-European language (PIE) had three distinct sets of velar consonants: plain velars, palatovelars, and labiovelars. For Melchert, PIE → Luwian z (probably ); → k; and → ku (probably ). Luwian has also been enlisted for its verb kalut(t)i(ya)-, which means "make the rounds of" and is probably derived from *kalutta/i- "circle". It has been argued that this derives from a proto-Anatolian word for "wheel", which in turn would have derived from the common word for "wheel" found in all other Indo-European families. The wheel was invented in the 5th millennium BC and, if kaluti does derive from it, then the Anatolian branch left PIE after its invention (so validating the Kurgan hypothesis as applicable to Anatolian). However, kaluti need not imply a wheel and so need not have been derived from a PIE word with that meaning. The IE words for a wheel may well have arisen in those other IE languages after the Anatolian split.
Geographic and chronological distribution
Luwian was among the languages spoken during the 2nd and 1st millennia BC by groups in central and western Anatolia and northern Syria. The earliest Luwian texts in cuneiform transmission are attested in connection with the Kingdom of Kizzuwatna in southeastern Anatolia, as well as a number of locations in central Anatolia. Beginning in the 14th century BC, Luwian-speakers came to constitute the majority in the Hittite capital Hattusa. It appears that by the time of the collapse of the Hittite Empire ca. 1180 BC, the Hittite king and royal family were fully bilingual in Luwian. Long after the extinction of the Hittite language, Luwian continued to be spoken in the Neo-Hittite states of Syria, such as Milid and Carchemish, as well as in the central Anatolian kingdom of Tabal that flourished in the 8th century BC.
A number of scholars in the past attempted to argue for the Luwian homeland in western Anatolia. According to James Mellaart, the earliest Indo-Europeans in northwest Anatolia were the horse-riders who came to this region from the north and founded Demircihöyük (Eskişehir Province) in Phrygia c. 3000 BC. They were allegedly ancestors of the Luwians who inhabited Troy II, and spread widely in the Anatolian peninsula. He cited the distribution of a new type of wheel-made pottery, Red Slip Wares, as some of the best evidence for his theory. According to Mellaart, the proto-Luwian migrations to Anatolia came in several distinct waves over many centuries. The recent detailed review of Mellaart's claims suggests that his ethnolinguistic conclusions cannot be substantiated on archaeological grounds.