Comments:Poppe 14, АПиПЯЯ 40-41, 285 (with some confusion of this root and *t`òŋké q. v.). An expressive root with some violation of correspondences; but borrowing in Mong. from Turkic is hardly acceptable, despite Щербак 1997, 154. In Mong., a variant *toɣ- may be present in *toɣuri- 'go round' (MMong. (SH) to'ori-, KW 408, Dag. tōri-; > Man. torgi-, ТМС 2, 204), tojira- id.; a variant *dug- in WMong. duɣuj, Khalkha duguj, Kalm. duɣu 'wheel, ring' (L 271, KW 101), whence Tur. dial. toɣaj, Kum., KBalk. toɣaj 'ring, part of wheel hoop'. Cf. also PA *t`ŏk`V 'curved', also a possible source of contaminations.