Комментарии:EAS 123, KW 384. A Western isogloss. Mong. cannot be < Turk., despite Щербак 1997, 154, and the Turk.-Mong. match cannot be rejected on phonetic grounds, despite Doerfer TMN 2, 437. However, in this case we must suppose a secondary assimilation in Mong.: tata- < *data-.