Comments:ССЕ 206. Cf. also Ket bātkup1 'bend (of a river)' (the second part - kup - is not quite clear). Ket and Kottish reflect a compound with *bul 'foot, leg' q.v. Werner 1, 108-109 gives a completely folk-etymological analysis of bat-puĺ as bat "forehead, face" + būĺ "leg": it is the stranger because on the same page he adds the attested plain stem baʔt 'joint, knee' and bátiŋ 'joints' - clearly distinct from bat / bāt3 'face' q.v.