Where does “iridoline” come from?

iridoline (English) comes from English iridescent, from English -escent, from Latin -escens, from Latin -esco, from Latin -eo, from Proto-Italic -ēō, from Proto-Italic -ējō, from Proto-Indo-European -éh₁yeti — Creates transitive imperfective verbs from roots.

iridoline (English): A nitrogenous base of the quinoline series, CHN,...

Definitions

  1. A nitrogenous base of the quinoline series, CHN,...

Ancestry of “iridoline”, step by step

iridoline traces back through two separate lines of ancestry.

via English iridescent

StepLanguageWordMeaning
1EnglishiridescentProducing a display of lustrous, rainbow-like...
2English-escentbeginning to be; becoming; resembling
3Latin-escens
4Latin-escoForms verbs from adjectives meaning "become "
5Latin-eoForms stative verbs from adjectives; dative...
6Proto-Italic-ēōForms stative verbs, indicating a state of being;...
7Proto-Italic-ējō
8Proto-Indo-European-éh₁yetiThematicization of the athematic stative verbal...
9Proto-Indo-European-yetiCreates transitive imperfective verbs from roots

via English oleum

StepLanguageWordMeaning
1EnglisholeumA solution of sulfur trioxide in sulfuric acid
2GermanOleumoleum
3Latinoleumolive oil; the palaestra
4Ancient Greekἔλαιονolive oil, commonly used as an anointing oil; any...
5Ancient Greekἐλαίαolive tree; olive; naevus
6Proto-Hellenicelaíwā
7Proto-Indo-Europeanloiwom
Every word from Proto-Indo-European -yetiEvery word from Latin -eoEvery word from Latin -esco
iridoline — Etymology, Origin & Word History | Etymology Explorer