Proto-Turkic: *čap-, *čopur
Meaning: 1 pock-marked, variegated 2 badly bred, sloppy 3 to appear (of rash, furuncles)
Russian meaning: 1 пестрый, рябой 2 непородистый, неряшливый 3 высыпать (о сыпи, чирьях)
Turkish: čopur 1
Middle Turkic: čubar 'cheval gris de fer', čibar 'grey, mottled (horse)' (Pav. C.) Uzbek: čipɔr 1
Uighur: čipa(r) 1
Azerbaidzhan: čopur 1
Turkmen: čopur 1
Tofalar: šubar 1
Kirghiz: čobur 2
Kazakh: šubar 1
Noghai: šubar 1
Bashkir: säbärt- 'to appear (of rash on lips)', sɨbar 1
Balkar: čapɨr- 3, čubar 1
Gagauz: čɨbar- 3
Karaim: čɨbar, cɨbar 1
Karakalpak: šubar 1
Kumyk: čapɨr- 3, čopur 1, čubar 'variegated'
Comments: VEWT 116, 118-119, Егоров 320, Федотов 2, 403. An expressive and late attested root; appears, however, to be reconstructable for PT. The original shape is probably *čap- (preserved in čap-ɨr- 'to appear (of rash)', with further labial assimilation into *čopur. The frequently attested variant čupar > čubar is most probably a result of contamination *čopur and *čubar (reflected in Tat. čuwar, Kirgh. čār that can only reflect *-b-). 
