Comments:VEWT 399. It is also worth noting Bashk. humalaq 'lump of clay' and Tat. sumala 'tar' (possibly < Chuv.). Федотов 2, 23-24. The word is attested quite late and is usually regarded as borrowed < Russ. смола. This might be true, but let us note that no other Russian words were hitherto discovered in Chagatai.