Where does “Kŭrdzhali” come from?

Kŭrdzhali (English) comes from Bulgarian Кърджали, from Ottoman Turkish قیرجه‌علی.

Ancestry of “Kŭrdzhali”, step by step

Step	Language	Word	Meaning
1	Bulgarian	Кърджали	—
2	Ottoman Turkish	قیرجه‌علی	—