The story
- Proto-Indo-Iranian*síndʰuš
- Sanskritसिन्धु॑ (síndhu)
- Old Persian𐏃𐎡𐎯𐎢𐏁 (hiⁿdūš)
- Ancient GreekἸνδός (Indós)
- Ancient GreekἸνδία (Indía)
- Ancient GreekἸνδικός (Indikós)
- LatinIndicu
- Spanishíndico
- Spanishíndigo
- Portugueseendego
- Spanishíndigo
- Dutchindigo
- Englishind(igo)
- Englishindene
- Proto-Indo-European*swel-der.?
- Ancient Greekῡ̔́λη (hū́lē)
- Englishindenyl
- Englishcarbostyril
- Englisharterenol?
- English todayindacaterol
From ind(enyl) + ca(rbostyril) + -terol (“phenethylamine derivative”).
Etymology from Wiktionary, CC BY-SA 4.0.