Comments:VEWT 468-469, EDT 476, ЭСТЯ 3, 173-175, Stachowski 224. Sal. deš-, dial. teš-, tejiš- 'to burn' must be derived from the same root ("to reach fire"). A very complicated issue is the relationship of this root to PT *dēk, *dēki- 'to, up to' (usually acting as a postposition) - see ЭСТЯ 2, 182-185, EDT 477 (added should be also Yak. dieki 'in the direction of', Dolg. diek, diegi 'side', see Stachowski 79). The phonology here is quite puzzling: one would be tempted to regard the medial -k- as an archaism (see below on the irregularity of *-g- in Turkic), but the open long *-ē- presents great difficulties (since the verbal root itself most definitely has a short closed *-ẹ-). A possible solution is to correct the reconstruction *dēk(i) to *dẹge-ki and regard the *-k(i) as an original locative suffix; this seems plausible because another attested form of the postposition is *dẹgi-n (cf. especially reflexes like Tat. dial. tiŋ, KKalp. dejin, Kaz. dejĭn, Nogh. dejim).