Where does “Кюлеров” come from?

Кюлеров (Bulgarian) comes from Turkish kül, from Ottoman Turkish قول, from Old Anatolian Turkish قل, from Proto-Turkic kül — ash.

Ancestry of “Кюлеров”, step by step

StepLanguageWordMeaning
1Turkishkülash
2Ottoman Turkishقولservant; arm; branch, section, division
3Old Anatolian Turkishقلslave
4Proto-Turkickülash
Every word from Proto-Turkic kül →Every word from Old Anatolian Turkish قل →Every word from Ottoman Turkish قول →
Кюлеров — Etymology, Origin & Word History | Etymology Explorer