Clauson (1972)
An etimological dictionary of pre-thirteenth-century Turkish
p. 463
1 ta:ğ (d-) ‘mountain’. C.i.a.p.a.l., usually as tag or taw; in NE Tuv.; NW Krim; SW Âz., Osm. dağ; Tkm. da:ğ. See Doerfer II 859. Türkü viii (VU) Tögkeş tağda: ‘on the Tögkeş mountain’ II S 8; I E 12 (en-) a.0.0.: viii ff. tağ üze: ‘on a mountain’ IrkB 17; a.0.0.: Uyğ. viii kömür tağda: ‘at the Coal Mountain’ Şu. N 8; a.0.0.: viii ff. Bud. tağ ‘mountain’ is common; see also tağdm: Civ. ditto: Xak. xi ta:ğ al-cabal ‘mountain’ Kaş. Ill 153 (prov.) and nearly 70 0.0.: KB yazı tağ ‘plains and mountains’ 21, 69, 96, etc.: xiii(?) Tef. ta:ğ/ta:ğ ditto 281: xiv Muh. al- -cabal da:k (ric) Mel. 24, 13; ta:ğ Rif. 178; qullatu’l-cabal ‘the crest of a mountain’ da:ğ ba:şı: Mel.-, ta:ğ ba:şı: Rif. do.: Çağ.xvff. tağ kiih ‘mountain’ (also ‘tamarisk’ a Pe. l.-w.) San. i57r. 16: Xwar. xiii(?) tağ ditto is common in Oğ.: xiv ditto Qutb 168: Kom. xiv ‘mountain’ tağ/tav CCI, CCG; Gr.: Kip. xiii al-cabal ta:ğ Hou. 5, 17: xiv ditto İd. 64 (tağ); Bul. 3, 9: xv al-cabal ta:ğ, also called taw bi’l-wdw Kav. 58, 11; cabal taw ‘also with -ğ’ Tuh. 11 a. 9.