Where does “Haliç” come from?

Haliç (Turkish) comes from Persian خلیج, from Arabic خَلِيج — bay.

Ancestry of “Haliç”, step by step

Step	Language	Word	Meaning
1	Persian	خلیج	bay, gulf; sound, strait
2	Arabic	خَلِيج	bay

Haliç — Etymology, Origin & Word History | Etymology Explorer