Where does “oiligarchy” come from?

oiligarchy (English) comes from English oligarchy, from French oligarchie, from Late Latin oligarchia, from Ancient Greek ὀλιγαρχία, from Ancient Greek ὀλιγάρχης, from Ancient Greek -άρχης, from Ancient Greek -ής, from Proto-Indo-European -ēs — Creates action nouns or result nouns from verbs;...

oiligarchy (English): A country or elite group that obtains its power from control of the oil industry

Definitions

  1. A country or elite group that obtains its power from control of the oil industry

Ancestry of “oiligarchy”, step by step

oiligarchy traces back through two separate lines of ancestry.

via English oligarchy

StepLanguageWordMeaning
1EnglisholigarchyA government run by only a few, often the...
2Frencholigarchieoligarchy
3Late Latinoligarchiaoligarchy
4Ancient Greekὀλιγαρχίαrule of few, oligarchy; vocative singular of...
5Ancient Greekὀλιγάρχηςoligarch
6Ancient Greek-άρχης-arch
7Ancient Greek-ήςadjective suffix
8Proto-Indo-European-ēsPrimarily forms adjectival bahuvrīhi compounds
9Proto-Indo-European-ess
10Proto-Indo-European-osCreates action nouns or result nouns from verbs;...

via English oil

StepLanguageWordMeaning
1EnglishoilLiquid fat; Petroleum-based liquid used as fuel...
2Middle EnglishoyleThe oil pressed from olives; olive oil; Oil as...
3Old Frenchoileoil
4Latinoleumolive oil; the palaestra
5Ancient Greekἔλαιονolive oil, commonly used as an anointing oil; any...
6Ancient Greekἐλαίαolive tree; olive; naevus
7Proto-Hellenicelaíwā
8Proto-Indo-Europeanloiwom
Every word from Proto-Indo-European -osEvery word from Ancient Greek -ήςEvery word from Ancient Greek -άρχης