Where does “Indonesia” come from?

Indonesia (Cia-Cia) comes from Indonesian Indonesia, from Dutch Indonesië, from Ancient Greek Ἰνδός, from Old Persian 𐏃𐎡𐎯𐎢𐏁, from Sanskrit सिन्धु, from Proto-Indo-Aryan síndʰuṣ, from Proto-Indo-Iranian síndʰuš, from Sanskrit सिन्धु॑.

Ancestry of “Indonesia”, step by step

StepLanguageWordMeaning
1IndonesianIndonesiaIndonesian
2DutchIndonesiëIndonesia
3Ancient GreekἸνδόςan inhabitant of India or the Indian...
4Old Persian𐏃𐎡𐎯𐎢𐏁India; people living beyond the Indus
5Sanskritसिन्धुa river, stream; flood, waters; ocean, sea
6Proto-Indo-Aryansíndʰuṣriver, ocean; flow
7Proto-Indo-Iraniansíndʰušriver, stream
8Sanskritसिन्धु॑
Every word from Sanskrit सिन्धु॑Every word from Proto-Indo-Iranian síndʰušEvery word from Proto-Indo-Aryan síndʰuṣ