Comments:KW 92. A Western isogloss. The Turkic and Mong. forms are no doubt related, but Ramstedt treats them both as derived from *deg- 'top'. Since we divide the traditional reconstruction of the latter root into *di̯òge and *tēga (q. v.), such a derivation seems less plausible. The Ud. form diŋe-, albeit isolated in TM, also supports deriving Turk. *jẹŋ- and Mong. dejil- from a separate root.
Comments:АПиПЯЯ 100, 275, Дыбо 46, Лексика 178, Vovin 2000. TM *ǯoji (in fact *ǯobi) 'Salmo lenoc' (compared in some of the above sources) has a precise match in WMong. ǯebege and has to be separated; see *ǯi̯abo. The Jpn. form could also belong there phonetically, but the close match with Kor. thi makes its derivation from *di̯ági more plausible.
Comments:Лексика 168. Low tone in Jpn. does not correspond to Kor. (but cf. different dialectal variants). The root must have denoted some small rodent, possibly a flying squirrel (which could explain the meaning 'bat' in Turkic). One should also mention PM *ǯaraɣa 'hedgehog, porcupine' = Karakh. jarpuz 'mongoose', possibly derived from the same root. A different etymology of the Turkic word (comparing it with Evk. ńarbakin 'naked' and deriving from a *ńarV 'naked skin', see Stachowski 1999) seems less likely to us.
Comments:АПиПЯЯ 103, 275. Despite the meaning of the Chuvash form ("up") the Turk. root should be rather compared with this Korean and Japanese data than with Mong. degde- 'rise' etc. (see VEWT 194 with literature). On the latter root see under *tēga. The Mong. vocalism in *ǯaɣa is somewhat aberrant: it is probably a result of early vowel assimilation < *ǯiɣa (the variants ǯiɣa- and ǯaɣa- in WMong. interchange frequently).
Comments:EAS 51, KW 102, Владимирцов 174, Poppe 23, 75, JOAL 85, ОСНЯ 1, 221-222, Murayama 1962, 108, АПиПЯЯ 51, 72, 284, Дыбо 11, Лексика 21. Despite Щербак 1997, 124, Mong. cannot be explained as a Turkic loanword, and despite Doerfer MT 72 the TM and Mong. forms should be regarded as genuinely related. Note that several forms reflect an original derivative *di̯ūl(u)-gV (Turk., Mong. and Jpn. *dù < *di̯ul-gu).