Комментарии:SKE 178, EAS 106, Poppe 76 (Turk.-Mong.; assumption of Mong. being borrowed from Turk., see Щербак 1997, 120, is improbable). Turk. has a somewhat unexpected narrowing: *īl- instead of *ẹ̄l-; however, the etymology still seems probable (despite Doerfer's categorical refusal: "lautgesetzlich unmöglich"; see TMN 2, 214).