Where does “indole alkaloid” come from?

indole alkaloid (English) comes from English indole, from Latin oleum, from Ancient Greek ἔλαιον, from Ancient Greek ἐλαία, from Proto-Hellenic elaíwā, from Proto-Indo-European loiwom.

indole alkaloid (English): An alkaloid that contains an indole structure (a bicyclic structure made up of a six-membered benzene ring fused to a five-membered nitrogen-containing pyrrole ring)

Definitions

  1. An alkaloid that contains an indole structure (a bicyclic structure made up of a six-membered benzene ring fused to a five-membered nitrogen-containing pyrrole ring)

Ancestry of “indole alkaloid”, step by step

indole alkaloid traces back through two separate lines of ancestry.

via English indole

StepLanguageWordMeaning
1EnglishindoleAn organic compound, CHN, found in coal tar, and...
2Latinoleumolive oil; the palaestra
3Ancient Greekἔλαιονolive oil, commonly used as an anointing oil; any...
4Ancient Greekἐλαίαolive tree; olive; naevus
5Proto-Hellenicelaíwā
6Proto-Indo-Europeanloiwom

via English alkaloid

StepLanguageWordMeaning
1EnglishalkaloidAny of many organic heterocyclic bases that occur...
2EnglishalkaliOne of a class of caustic bases, such as soda,...
3Frenchalcalialkali
4Medieval Latinalcali
5Arabicاَلْقِلْي
Every word from Proto-Indo-European loiwomEvery word from Proto-Hellenic elaíwāEvery word from Ancient Greek ἐλαία