Comments:Medial *-j- is reconstructed to account for the loss of *-ĺ- in Korean. Phonetically a good match would be PJ *bǝsa-na- 'small, young (of children)', but the semantics raises some doubt here. Ramstedt (SKE 186) compares Turk. boš with Mong. bulgu 'free, broad' > Kirgh. buluk- 'to try to free smb.'; but we have not found either word in accessible sources.