Proto-Tungus-Manchu: *nur-
Meaning: to do smth. ceaselessly, constantly
Russian meaning: не прерывать, делать что-л. постоянно
Evenki: nur-nur 'slightly'
Literary Manchu: nur-χu-
tunget-prnum,tunget-meaning,tunget-rusmean,tunget-evk,tunget-man,tunget-reference,