Where does “قوربغه” come from?

قوربغه (Ottoman Turkish) comes from Proto-Turkic *kïrbāka, from Proto-Turkic *bāka.

Ancestry of “قوربغه”, step by step

Step	Language	Word	Meaning
1	Proto-Turkic	*kïrbāka	—
2	Proto-Turkic	*bāka	—