Comments:EAS 71, KW 325, Poppe 29, 82 (Turc-Mong.), Murayama 1962, 111, 1978, 277-278, Miller 1981, 852, ОСНЯ 2, 107-108, Ozawa 228-229, АПиПЯЯ 74, 91, 276, Дыбо 14, Martin 234. TM preserves length in a monosyllabic root after loss of the resonant. Mong. cannot be explained as a loanword, despite Щербак 1997, 144.