Comments:ССЕ 273. This root probably serves as the deriving stem for the verb Yug. śi:ń3, Ket śiɣǝń5 'to weigh' (although there are vocalic problems and Ket -ɣ- is absolutely unclear - perhaps an erroneous recording?). Werner 2, 221 reconstructs <*sǝkǝ > *sǝgǝ> "heavy", but does not agree with relating here the verb "to weigh" ("wie verlockend es auch scheint"). In 2, 204 he reconstructs <*sigǝn'> 'to weigh' and lists the Ket reflexes as śíɣeń / śíɣań / śi:ń3. Ket -ɣ- is still unexplained, but the - now attested - variant śi:ńh allows to reconstruct *siGǝń, which I still think is quite well derivable from *sǝG- 'heavy'.