Where does “Ινδός” come from?

Ινδός (Greek) comes from Ancient Greek Ἰνδός, from Old Persian 𐏃𐎡𐎯𐎢𐏁, from Sanskrit सिन्धु, from Proto-Indo-Aryan síndʰuṣ, from Proto-Indo-Iranian síndʰuš, from Sanskrit सिन्धु॑.

Ινδός (Greek): Indian, a male person from India or of Indian...

Definitions

Indian, a male person from India or of Indian...

Ancestry of “Ινδός”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	Ἰνδός	an inhabitant of India or the Indian...
2	Old Persian	𐏃𐎡𐎯𐎢𐏁	India; people living beyond the Indus
3	Sanskrit	सिन्धु	a river, stream; flood, waters; ocean, sea
4	Proto-Indo-Aryan	síndʰuṣ	river, ocean; flow
5	Proto-Indo-Iranian	síndʰuš	river, stream
6	Sanskrit	सिन्धु॑	—

Every word from Sanskrit सिन्धु॑ →Every word from Proto-Indo-Iranian síndʰuš →Every word from Proto-Indo-Aryan síndʰuṣ →