*süm

darkness, shadow

Proto-Turkic: *süm
Altaic etymology: Altaic etymology
Proto-Altaic: *si̯umi
Nostratic: Nostratic
Russian meaning: темнота, тень
Turkic: *süm
Mongolian: *süme-
Tungus-Manchu: *sim-
Comments: An isolated Chuvash form.
Chuvash: sǝʷm