Proto-Altaic: *li̯ùbu ( ~ -i̯a-)
Meaning: resin, clay, dirt
Russian meaning: смола, глина, грязь
Comments: JOAL 102, 1981, 853 (attracting also OJ núr- 'to paint', which seems less plausible because of tone incongruence with *nì; on its etymology see *ni̯úŕe).