Anatolian languages
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. Undiscovered until the late 19th and early 20th centuries, they are often believed to be the earliest branch to have split from the Indo-European family. Once discovered, the presence of laryngeal consonants ḫ and ḫḫ in Hittite and Luwian provided support for the laryngeal theory of Proto-Indo-European linguistics. While Hittite attestation ends after the Bronze Age, hieroglyphic Luwian survived until the conquest of the Neo-Hittite kingdoms by Assyria, and alphabetic inscriptions in Anatolian languages are fragmentarily attested until the early first millennium AD, eventually succumbing to the Hellenization of Anatolia as a result of Greek colonisation.
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.
Undiscovered until the late 19th and early 20th centuries, they are often believed to be the earliest branch to have split from the Indo-European family. Once discovered, the presence of laryngeal consonants ḫ and ḫḫ in Hittite and Luwian provided support for the laryngeal theory of Proto-Indo-European linguistics. While Hittite attestation ends after the Bronze Age, hieroglyphic Luwian survived until the conquest of the Neo-Hittite kingdoms by Assyria, and alphabetic inscriptions in Anatolian languages are fragmentarily attested until the early first millennium AD, eventually succumbing to the Hellenization of Anatolia as a result of Greek colonisation.

Origins
The Anatolian branch is often considered the earliest to have split from the Proto-Indo-European language, from a stage referred to either as Indo-Hittite or "Archaic PIE"; typically a date in the mid-4th millennium BC is assumed. Under the Kurgan hypothesis, there are two possibilities for how the early Anatolian speakers could have reached Anatolia: from the north via the Caucasus, or from the west, via the Balkans; the latter is considered somewhat more likely by Mallory (1989), Steiner (1990), and Anthony (2007). Statistical research by Quentin Atkinson and others using Bayesian inference and glottochronological markers favors an Indo-European origin in Anatolia, though the method's validity and accuracy are subject to debate.It has been theorized that Cernavodă culture, together with the Sredny Stog culture, was the source of Anatolian languages and introduced them to Anatolia through the Balkans after Anatolian split from the Proto-Indo-Anatolian language, which some linguists and archaeologists place in the area of the Sredny Stog culture.

Classification
Melchert (2012) has proposed the following classification:

Kloekhorst (2022) has proposed a more detailed classification, with estimated dating for some of the reconstructed stages:

In addition, the Kalašma language is believed to be a Luwic language, though further analysis has yet to be published.

Features
Phonology
The phonology of the Anatolian languages preserves distinctions lost in its sister branches of Indo-European. Famously, the Anatolian languages retain the PIE laryngeals in words such as Hittite ḫāran- (cf. Ancient Greek ὄρνῑς, Lithuanian eręlis, Old Norse ǫrn, PIE *h₃éron-) and Lycian 𐊜𐊒𐊄𐊀 χuga (cf. Latin avus, Old Prussian awis, Archaic Irish ᚐᚃᚔ (avi), PIE *h₂éwh₂s). The three dorsal consonant series of PIE also remained distinct in Proto-Anatolian and have different reflexes in the Luwic languages, e.g. Luwian where *kʷ > ku-, *k > k-, and *ḱ > z-. The three-way distinction in Proto-Indo-European stops (i.e. *p, *b, *bʰ) collapsed into a fortis-lenis distinction in Proto-Anatolian, conventionally written as /p/ vs. /b/. In Hittite and Luwian cuneiform, the lenis stops were written as single voiceless consonants while the fortis stops were written as doubled voiceless, indicating a geminated pronunciation. By the first millennium, the lenis consonants seem to have been spirantized in Lydian, Lycian, and Carian.The Proto-Anatolian laryngeal consonant *H patterned with the stops in fortition and lenition and appears as geminated -ḫḫ- or plain -ḫ- in cuneiform. Reflexes of *H in Hittite are interpreted as pharyngeal fricatives and those in Luwian as uvular fricatives based on loans in Ugaritic and Egyptian, as well as vowel-coloring effects. The laryngeals were lost in Lydian but became Lycian 𐊐 (χ) and Carian 𐊼 (k), both pronounced [k], as well as labiovelars —Lycian 𐊌 (q), Carian 𐊴 (q)—when labialized. Suggestions for their realization in Proto-Anatolian include pharyngeal fricatives, uvular fricatives, or uvular stops.

Verbs
Despite their antiquity, Anatolian morphology is considerably simpler than other early Indo-European (IE) languages. The verbal system distinguishes only two tenses (present-future and preterite), two voices (active and mediopassive), and two moods (indicative and imperative), lacking the subjunctive and optative moods found in other old IE languages like Tocharian, Sanskrit, and Ancient Greek. Anatolian verbs are also typically divided into two conjugations: the mi conjugation and ḫi conjugation, named for their first-person singular present indicative suffix in Hittite. While the mi conjugation has clear cognates outside of Anatolia, the ḫi conjugation is distinctive and appears to be derived from a reduplicated or intensive form in PIE.

Gender
The Anatolian gender system is based on two classes: animate and inanimate (also termed common and neuter). Proto-Anatolian almost certainly did not inherit a separate feminine agreement class from PIE. The two-gender system has been described as a merger of masculine and feminine genders following the phonetic merger of PIE a-stems with o-stems. However the discovery of a group of inherited nouns with suffix *-eh2 in Lycian and therefore Proto-Anatolian raised doubts about the existence of a feminine gender in PIE. The feminine gender typically marked with -ā in non-Anatolian Indo-European languages may be connected to a derivational suffix *-h2, attested for abstract nouns and collectives in Anatolian. The appurtenance suffix *-ih2 is scarce in Anatolian but fully productive as a feminine marker in Tocharian. This suggests the Anatolian gender system is the original for IE, while the feminine-masculine-neuter classification of Tocharian + Core IE languages may have arisen following a sex-based split within the class of topical nouns to provide more precise reference tracking for male and female humans.

Case
Proto-Anatolian retained the nominal case system of Proto-Indo-European, including the vocative, nominative, accusative, instrumental, dative, genitive, and locative cases, and innovated an additional allative case. Nouns distinguish singular and plural numbers, as well as a collective plural for inanimates in Old Hittite and remnant dual forms for natural pairs. The Anatolian branch also has a split-ergative system based on gender, with inanimate nouns being marked in the ergative case when the subject of a transitive verb. This may be an areal influence from nearby non-IE ergative languages like Hurrian.

Syntax
The basic word order in Anatolian is subject-object-verb except for Lycian, where verbs typically precede objects. Clause-initial particles are a striking feature of Anatolian syntax; in a given sentence, a connective or the first accented word usually hosts a chain of clitics in Wackernagel's position. Enclitic pronouns, discourse markers, conjunctions, and local or modal particles appear in rigidly ordered slots. Words fronted before the particle chain are topicalized.

Languages
The list below gives the Anatolian languages in a relatively flat arrangement, following a summary of the Anatolian family tree by Robert Beekes (2010). This model recognizes only one clear subgroup, the Luwic languages. Modifications and updates of the branching order continue, however. A second version opposes Hittite to Western Anatolian, and divides the latter node into Lydian, Palaic, and a Luwian group (instead of Luwic).

Hittite
Hittite (nešili) was the language of the Hittite Empire, dated approximately 1650–1200 BC, which ruled over nearly all of Anatolia during that time. The earliest sources of Hittite are the 19th century BC Kültepe texts, the Akkadian language records of the kârum kaneš, or "port of Kanes," an Assyrian enclave of merchants within the city of kaneš (Kültepe). This collection records Hittite names and words loaned into Akkadian from Hittite. The Hittite name for the city was Neša, from which the Hittite endonym for the language, Nešili, was derived. The fact that the enclave was Assyrian, rather than Hittite, and that the city name became the language name, suggest that the Hittites were already in a position of influence, perhaps dominance, in central Anatolia.
The main cache of Hittite texts is the approximately 30,000 clay tablet fragments, of which only some have been studied, from the records of the royal city of Hattuša, located on a ridge near what is now Boğazkale, Turkey (formerly named Boğazköy). The records show a gradual rise to power of the Anatolian language speakers over the native Hattians, until at last the kingship became an Anatolian privilege. From then on, little is heard of the Hattians, but the Hittites kept the name. The records include rituals, medical writings, letters, laws and other public documents, making possible an in-depth knowledge of many aspects of the civilization.
Most of the records are dated to the 13th century BC (Late Bronze Age). They are written in cuneiform script borrowing heavily from the Mesopotamian system of writing. The script is a syllabary. This fact, combined with frequent use of Akkadian and Sumerian words, as well as logograms, or signs representing whole words, to represent lexical items, often introduces considerable uncertainty as to the form of the original. However, phonetic syllable signs are present also, representing syllables of the form V, CV, VC, CVC, where V is "vowel" and C is "consonant".Hittite is divided into Old, Middle, and New (or Neo-). The dates are somewhat variable. They are based on an approximate coincidence of historical periods and variants of the writing system: the Old Kingdom and the Old Script, the Middle Kingdom and the Middle Script, and the New Kingdom and the New Script. Fortson gives the dates, which come from the reigns of the relevant kings, as 1570–1450 BC, 1450–1380 BC, and 1350–1200 BC respectively. These are not glottochronologic. All cuneiform Hittite came to an end at 1200 BC with the destruction of Hattusas and the end of the empire.

Palaic
Palaic, spoken in the north-central Anatolian region of Palā (later Paphlagonia), extinct around the 13th century BC, is known only from fragments of quoted prayers in Old Hittite texts. It was extinguished by the replacement of the culture, if not the population, as a result of an invasion by the Kaskas, which the Hittites could not prevent.

Luwic branch
The term Luwic was proposed by Craig Melchert as the node of a branch to include several languages that seem more closely related than the other Anatolian languages. This is not a neologism, as Luvic had been used in the early 20th century AD to mean the Anatolian language group as a whole, or languages identified as Luvian by the Hittite texts. The name comes from Hittite 𒇻𒌑𒄿𒇷 luwili. The earlier use of Luvic fell into disuse in favor of Luvian. Meanwhile, most of the languages now termed Luvian, or Luvic, were not known to be so until the latter 20th century AD. Even more fragmentary attestations might be discovered in the future.
Luvian and Luvic have other meanings in English, so currently Luwian and Luwic are preferred. Before the term Luwic was proposed for Luwian and its closest relatives, scholars used the term Luwian in the sense of 'Luwic languages'. For example, Silvia Luraghi's Luwian branch begins with a root language she terms the "Luwian group", which logically is in the place of Common Luwian or Proto-Luwian. Its three offsprings, according to her are Milyan, Proto-Luwian, and Lycian, while Proto-Luwian branches into Cuneiform and Hieroglyphic Luwian.

Luwian
The Luwian language is attested in two different scripts, cuneiform and Anatolian hieroglyphs, over more than a millennium. While the earlier scholarship tended to treat these two corpora as separate linguistic entities, the current tendency is to separate genuine dialectal distinctions within Luwian from orthographic differences. Accordingly, one now frequently speaks of Kizzuwatna Luwian (attested in cuneiform transmission), Empire Luwian (cuneiform and hieroglyphic transmission), and Iron Age Luwian / Late Luwian (hieroglyphic transmission), as well as several more Luwian dialects, which are more scarcely attested.The cuneiform corpus (Melchert's CLuwian) is recorded in glosses and short passages in Hittite texts, mainly from Boğazkale. About 200 tablet fragments of the approximately 30,000 contain CLuwian passages. Most of the tablets reflect the Middle and New Script, although some Old Script fragments have also been attested. Benjamin Fortson hypothesizes that "Luvian was employed in rituals adopted by the Hittites." A large proportion of tablets containing Luwian passages reflect rituals emanating from Kizzuwatna. On the other hand, many Luwian glosses (foreign words) in Hittite texts appear to reflect a different dialect, namely Empire Luwian. The Hittite language of the respective tablets sometimes displays interference features, which suggests that they were recorded by Luwian native speakers.
The hieroglyphic corpus (Melchert's HLuwian) is recorded in Anatolian hieroglyphs, reflecting Empire Luwian and its descendant Iron Age Luwian. Some HLuwian texts were found at Boğazkale, so it was formerly thought to have been a "Hieroglyphic Hittite". The contexts in which CLuwian and HLuwian have been found are essentially distinct. Annick Payne asserts: "With the exception of digraphic seals, the two scripts were never used together."HLuwian texts are found on clay, shell, potsherds, pottery, metal, natural rock surfaces, building stone and sculpture, mainly carved lions. The images are in relief or counter-relief that can be carved or painted. There are also seals and sealings. A sealing is a counter-relief impression of hieroglyphic signs carved or cast in relief on a seal. The resulting signature can be stamped or rolled onto a soft material, such as sealing wax. The HLuwian writing system contains about 500 signs, 225 of which are logograms, and the rest purely functional determinatives and syllabograms, representing syllables of the form V, CV, or rarely CVCV.HLuwian texts appear as early as the 14th century BC in names and titles on seals and sealings at Hattusa. Longer texts first appear in the 13th century BC. Payne refers to the Bronze Age HLuwian as Empire Luwian. All Hittite and CLuwian came to an end at 1200 BC as part of the Late Bronze Age collapse, but the concept of a "fall" of the Hittite Empire must be tempered in regard to the south, where the civilization of a number of Syro-Hittite states went on uninterrupted, using HLuwian, which Payne calls Iron-Age Luwian and dates 1000–700 BC. Presumably these autonomous "Neo-Hittite" heads of state no longer needed to report to Hattusa. HLuwian caches come from ten city states in northern Syria and southern Anatolia: Cilicia, Charchamesh, Tell Akhmar, Maras, Malatya, Commagene, Amuq, Aleppo, Hama, and Tabal.

Lycian
Lycian (called "Lycian A" when Milyan was a "Lycian B") was spoken in classical Lycia, in southwestern Anatolia. It is attested from 172 inscriptions, mainly on stone, from about 150 funerary monuments, and 32 public documents. The writing system is the Lycian alphabet, which the Lycians modified from the Greek alphabet. In addition to the inscriptions are 200 or more coins stamped with Lycian names. Of the texts, some are bilingual in Lycian and Greek, and one, the Létôon trilingual, is in Lycian, Greek, and Aramaic. The longest text, the Xanthus stele, with about 250 lines, was originally believed to be bilingual in Greek and Lycian; however the identification of a verse in another, closely related language, a "Lycian B" identified now as Milyan, renders the stele trilingual. The earliest of the coins date before 500 BC; however, the writing system must have required time for its development and implementation.
The name of Lycia appears in Homer but more historically, in Hittite and in Egyptian documents among the "Sea Peoples", as the Lukka, dwelling in the Lukka lands. No Lycian text survives from Late Bronze Age times, but the names offer a basis for postulating its continued existence.
Lycia was completely Hellenized by the end of the 4th century BC, after which Lycian is not to be found. Stephen Colvin goes so far as to term this, and the other scantily attested Luwic languages, "Late Luwian", although they probably did not begin late. Analogously, Ivo Hajnal calls them – using an equivalent German term – Jungluwisch.

Milyan
Milyan was previously considered a variety of Lycian, as "Lycian B", but it is now classified as a separate language.

Carian
Carian was spoken in Caria. It is fragmentarily attested from graffiti by Carian mercenaries and other members of an ethnic enclave in Memphis, Egypt (and other places in Egypt), personal names in Greek records, twenty inscriptions from Caria (including four bilingual inscriptions), scattered inscriptions elsewhere in the Aegean world and words stated as Carian by ancient authors. Inscriptions first appeared in the 7th century BC.

Sidetic
Sidetic was spoken in the city of Side. It is known from coin legends and bilingual inscriptions that date from the 5th to the 2nd centuries BC.

Pisidian
The Pisidic language was spoken in Pisidia. Known from some thirty short inscriptions from the first to second centuries AD, it appears to be closely related to Lycian and Sidetic.

Kalašma
Kalašma was spoken in the Kalašma region, likely near the modern city of Bolu. It is known from a single inscription found in Hattusa.

Lydian
Lydian was spoken in Lydia. Within the Anatolian group, Lydian occupies a unique and problematic position due, first, to the still very limited evidence and understanding of the language and, second, to a number of features not shared with any other Anatolian language. The Lydian language is attested in graffiti and in coin legends from the end of the 8th or the beginning of the 7th century BC down to the 3rd century BC, but well-preserved inscriptions of significant length are presently limited to the 5th–4th centuries BC, during the period of Persian domination. Extant Lydian texts now number slightly over one hundred but are mostly fragmentary.

Other possible languages
It has been proposed that other languages of the family existed that have left no records, including the pre-Greek languages of Lycaonia and Isauria unattested in the alphabetic era. In these regions, only Hittite, Hurrian, and Luwian are attested in the Bronze Age. Languages of the region such as Mysian and Phrygian are Indo-European but not Anatolian, and are thought to have entered Anatolia from the Balkan peninsula at a later date than the Anatolian languages.

Extinction
Anatolia was heavily Hellenized following the conquests of Alexander the Great, as well as the previous Greek colonisation, and the native languages of the area ceased to be spoken as a result of assimilation in the subsequent centuries, making Anatolian the first well-attested branch of Indo-European to become extinct. The only other well-known branch with no living descendants is Tocharian, whose attestation ceases in the 8th century AD.
While Pisidian inscriptions date until the second century AD, the poorly-attested Isaurian language, which was probably a late Luwic dialect, appears to have been the last of the Anatolian languages to become extinct. Epigraphic evidence, including funerary inscriptions dating from as late as the 5th century, has been found by archaeologists.Personal names with Anatolian etymologies are known from the Hellenistic and Roman era and may have outlasted the languages they came from. Examples include Cilician Ταρκυνδβερρας Tarku-ndberras "assistance of Tarḫunz", Isaurian Ουαξαμοας Ouaxamoas < *Waksa-muwa "power of blessing(?)", and Lycaonian Πιγραμος Pigramos "resplendent, mighty" (cf. Carian 𐊷𐊹𐊼𐊥𐊪𐊸 Pikrmś, Luwian pīhramma/i-).Several Ancient Greek words are suggested to be Anatolian borrowings, for example:

Apóllōn (Doric: Apéllōn, Cypriot: Apeílōn), from *Apeljōn, as in Hittite Appaliunaš;
dépas 'cup; pot, vessel', Mycenaean di-pa, from Hieroglyphic Luwian ti-pa-s 'sky; bowl, cup' (cf. Hittite nēpis 'sky; cup');
eléphās 'ivory', from Hittite laḫpa (itself from Mesopotamia; cf. Phoenician ʾlp, Egyptian ꜣbw);
kýanos 'dark blue glaze; enamel', from Hittite kuwannan- 'copper ore; azurite' (ultimately from Sumerian kù-an);
kýmbachos 'helmet', from Hittite kupaḫi 'headgear';
kýmbalon 'cymbal', from Hittite ḫuḫupal 'wooden percussion instrument';
mólybdos 'lead', Mycenaean mo-ri-wo-do, from *morkw-io- 'dark', as in Lydian mariwda(ś)-k 'the dark ones';
óbryza 'vessel for refining gold', from Hittite ḫuprušḫi 'vessel';
tolýpē 'ball of wool', from Hittite taluppa 'lump'/'clod' (or Cuneiform Luwian taluppa/i).A few words in the Armenian language have been also suggested as possible borrowings from Hittite or Luwian, such as Arm. զուռնա zuṙna (compare Luwian zurni "horn").

See also
Armenian hypothesis
Tree model
Urheimat
Galatian, a Celtic language spoken in Anatolia

Notes
References
Fortson, Benjamin W (2010). Indo-European Language and Culture: An introduction. Blackwell textbooks in linguistics (2nd ed.). Chichester, U.K.; Malden, MA: Wiley-Blackwell. 19.
Keen, Anthony G. (1998) [1992]. Dynastic Lycia: A political history of the Lycians & their relations with foreign powers, c. 545–362 BC. Mnemosyne: bibliotheca classica Batavia. Supplementum. Leiden; Boston; Köln: Brill.
Kloekhorst, Alwin (2022). "Anatolian". In Olander, Thomas (ed.). The Indo-European Language Family: A Phylogenetic Perspective. Cambridge: Cambridge University Press. doi:10.1017/9781108758666. ISBN 978-1-108-49979-8. S2CID 161016819.
Luraghi, Silvia (1998) [1993], "The Anatolian Languages", in Ramat, Anna Giacalone; Ramat, Paolo (eds.), The Indo-European Languages, Routledge Language Family Descriptions, London; New York: Routledge. Originally published as Le Lingue Indoeuropee.
Mallory, J.P. (1989). In Search of the Indo-Europeans. London: Thames and Hudson.
Melchert, H. Craig (2012). "The Position of Anatolian" (PDF).
Melchert, H. Craig (2016). "Luwian" (PDF).
Patri, Sylvain (2007). L'alignement syntaxique dans les langues indo-européennes d'Anatolie. Studien zu den Bogazkoy-Texten 49. Wiesbaden: Otto Harrassowitz. ISBN 978-3-447-05612-0.
Rieken, Elisabeth (2017). "The dialectology of Anatolian". In Fritz, Mathias; Joseph, Brian; Klein, Jared (eds.). Comparative Indo-European Linguistics. Handbooks of Linguistics and Communication Science. Berlin; New York: de Gruyter Mouton. pp. 298–308.
Mallory, J.P. (1989). In Search of the Indo-Europeans. London: Thames and Hudson.
Payne, Annick (2010). Hieroglyphic Luwian: An Introduction with original Texts. SILO: Subsidia et Instrumenta Linguarum Orientis (2nd revised ed.). Wiesbaden: Harrassowitz.
Steiner, G. (1990). "The immigration of the first Indo-Europeans into Anatolia reconsidered". Journal of Indo-European Studies. 18: 185–214.
Yakubovich, Ilya (2011). "Luwian and the Luwians". In Steadman, Sharon R.; McMahon, Gregory (eds.). The Oxford Handbook of Ancient Anatolia. Oxford: Oxford University Press. pp. 534–547.

Further reading
Kroonen, Guus; Gojko Barjamovic; Michaël Peyrot (2018). "Linguistic supplement to Damgaard et al. 2018: Early Indo-European languages, Anatolian, Tocharian and Indo-Iranian". p. 3-7. doi:10.5281/zenodo.1240524.{{cite web}}:  CS1 maint: multiple names: authors list (link)

External links
"Digital etymological-philological Dictionary of the Ancient Anatolian Corpus Languages (eDiAna)". Ludwig-Maximilians-Universität München. Archived from the original on 25 February 2017. Retrieved 18 February 2017.
"Luwian". ancientscripts.com. Archived from the original on 2012-02-04. Retrieved 7 February 2012.
Justus, Carol; Slocum, Jonathan. "Indo-European Languages: Anatolian Family". University of Texas at Austin. Archived from the original on 5 February 2012. Retrieved 7 February 2012.
Melchert, H. Craig. "Anatolian Databases". UCLA. Retrieved 7 February 2012. Luwian, Lycian and Lydian.
Lauffenburger, Olivier (2006). "The Hittite Grammar Homepage". Archived from the original on 2011-05-20.