Old Turkic in the context of "Oghuz Yabgu State"

Proto-Turkic is the linguistic reconstruction of the common ancestor of the Turkic languages that was spoken by the Proto-Turks before their divergence into the various Turkic peoples. Proto-Turkic separated into Oghur (western) and Common Turkic (eastern) branches. Candidates for the Proto-Turkic homeland range from western Central Asia to Manchuria, with most scholars agreeing that their migrations started from the eastern part of the Central Asian steppe, while one author has postulated that Proto-Turkic originated 2,500 years ago in East Asia.

The oldest records of a Turkic language, the Old Turkic Orkhon inscriptions of the 7th century Göktürk khaganate, already show characteristics of Eastern Common Turkic. For a long time, the reconstruction of Proto-Turkic relied on comparisons of Old Turkic with early sources of the Western Common Turkic branches, such as Oghuz and Kypchak, as well as the Western Oghur proper (Bulgar, Chuvash, Khazar). Because early attestation of these non-easternmost languages is much sparser, reconstruction of Proto-Turkic still rests fundamentally on the easternmost Old Turkic of the Göktürks, however it now also includes a more comprehensive analysis of all written and spoken forms of the language.

The Ordos Plateau, also known as the Ordos Basin, the Ordos, or the Shaan-Gan-Ning Basin, is a highland sedimentary basin in parts of northernmost China with an elevation of 1,000–1,600 m (3,300–5,200 ft), and consisting mostly of land enclosed by the "Ordos Loop", a northerly rectangular bend of the Yellow River. It is China's second largest sedimentary basin (after the Tarim Basin) with a total area of 370,000 km (140,000 sq mi). The Ordos includes territories from five provinces: Shaanxi, Gansu, Ningxia, Inner Mongolia, and a thin fringe of Shanxi (western border counties of Xinzhou, Lüliang and Linfen), but is demographically dominated by the former three, hence the area is sometimes also called the "Shaan-Gan-Ning Basin". The basin is bounded in the east by the Lüliang Mountains, north by the Yin Mountains, west by the Helan Mountains, and south by the Huanglong Mountains, Meridian Ridge and Liupan Mountains.

The name "Ordos" (Mongolian: ) comes from the orda, which originally means "palaces" or "court" in Old Turkic. The seventh largest prefecture of Inner Mongolia, Ordos City, is similarly named due to its location within the Ordos Loop.

Kanasubigi (Greek: ΚΑΝΑΣΥΒΙΓΙ), possibly read as Kanas Ubigi or Kanas U Bigi, was a title of the early Bulgar rulers of the First Bulgarian Empire. Omurtag (814–831) and his son Malamir (831–836) are mentioned in inscriptions as Kanasubigi.

The title khan for early Bulgarian rulers is an assumed one, as only the form kanasubigi or "kanasybigi" is attested in stone inscriptions. Historians presume that it includes the title khan in its archaic form kana, and there is a presumptive evidence suggesting that the latter title was indeed used in Bulgaria, e.g. the name of one of the Bulgars' ruler Pagan occurs in Patriarch Nicephorus's so-called breviarium as Καμπαγάνος (Kampaganos), likely an erroneous rendition of the phrase "Khan Pagan". Among the proposed translations for the phrase kanasubigi as a whole are lord of the army, from the reconstructed Turkic phrase *sü begi, paralleling the attested Old Turkic sü baši, and, more recently, "(ruler) from God", from the Indo-European *su- and baga-, i.e. *su-baga (an equivalent of the Greek phrase ὁ ἐκ Θεοῦ ἄρχων, ho ek Theou archon, which is common in Bulgar inscriptions). Another presumption is that the title means the great khan. This titulature presumably persisted until the Bulgars adopted Christianity. Some Bulgar inscriptions written in Greek and later in Slavonic refer to the Bulgarian ruler respectively with the Greek title archon or the Slavic title knyaz.

Karakhanid, also known as Khaqani Turkic (lit. meaning 'imperial' or 'royal', self referring to as 'Türki' or 'Türkçe'), was a Turkic language developed in the 11th century during the Middle Turkic period under the Kara-Khanid Khanate. It has been described as the first literary Islamic Turkic language. It is sometimes classified under the Old Turkic category, rather than Middle Turkic, as it is contemporary to the East Old Turkic languages of Orkhon Turkic and Old Uyghur. Eastern Middle Turkic languages, namely Khorezmian Turkic and later Chagatai are descendants of the Karakhanid language.

Karakhanid vocabulary was influenced by Arabic and Persian loanwords, but the language itself was still noted to be similar to the Old Uyghur language. The language was written using the Arabic script. Mahmud al-Kashgari's Dīwān Lughāt al-Turk and Yūsuf Balasaguni's Kutadgu Bilig are considered to be important literary works written in Karakhanid language.

The Old Turkic script (also known variously as Göktürk script, Orkhon script, Orkhon-Yenisey script, Turkic runes) was the alphabet used by the Göktürks and other early Turkic khanates from the 8th to 10th centuries to record the Old Turkic language.

The script is named after the Orkhon Valley in Mongolia, where early 8th-century inscriptions were discovered in an 1889 expedition by Nikolai Yadrintsev. These Orkhon inscriptions were published by Vasily Radlov and deciphered by the Danish philologist Vilhelm Thomsen in 1893.

The Orkhon inscriptions are bilingual texts in Middle Chinese and Old Turkic, the latter written in the Old Turkic alphabet, carved into two memorial steles erected in the early 8th century by the Göktürks in the Orkhon Valley in what is modern-day Mongolia. They were created in honor of two Turkic princes, Kul Tigin and his brother Bilge Qaghan.

The inscriptions relate in both languages the legendary origins of the Turks, the golden age of their history, their subjugation by the Tang dynasty, and their liberation by Ilterish Qaghan. According to one source, the inscriptions contain "rhythmic and parallelistic passages" which resemble that of epics.