Where does “कोहेनूर” come from?

कोहेनूर (Hindi) comes from Persian کوه نور, from Persian نور, from Arabic نُور, from Classical Persian جَان, from Middle Persian 𐫃𐫏𐫀𐫗, from Proto-Iranian *wyaHnáH, from Proto-Indo-Iranian wyaHnás, from Proto-Indo-European h₂enh₁‑ — to breathe.

कोहेनूर (Hindi): the Koh-i-Noor diamond