*saja-

to be rare, thinned out

Proto-Turkic: *saja-
Altaic etymology: Altaic etymology
Proto-Altaic: *sajo
Russian meaning: быть редким, прореженным
Turkic: *saja-
Mongolian: *söɣem
Tungus-Manchu: *saja
Japanese: *sai ( ~ sia)
Comments: VEWT 395, TMN 3, 306, ЭСТЯ 7. The root is not widely attested, but its likely derivative is *saja-k 'young male horses separated from the herd; lonely man, wanderer', spread much wider (see ЭСТЯ 7). Chuv. sojak definitely reflects the same form and is not borrowed from Mar. sajak, but rather vice versa, despite Федотов 2, 53.
Tatar: sajɨq- (dial.) 'to become rare', sajaq 'rare'
Khakassian: saja-
Oyrat: saja-
Chuvash: sojak (dial.) 'bastard'
Bashkir: hajaq 'rare' (dial.)