Where does “petrolriĉa” come from?

petrolriĉa (Esperanto) comes from Esperanto riĉa, from English Rich, from English Richard, from Middle English Rycharde, from Old French Richard, from Medieval Latin Richardus, from Frankish Rīkahard, from Proto-Germanic Rīkaharduz — to straighten, to right oneself; right; just.

petrolriĉa (Esperanto): rich with oil, full of oil

Definitions

  1. rich with oil, full of oil

Ancestry of “petrolriĉa”, step by step

petrolriĉa traces back through two separate lines of ancestry.

via Esperanto riĉa

StepLanguageWordMeaning
1Esperantoriĉarich
2EnglishRichhaving a lot of money and possessions
3EnglishRichardA turd
4Middle EnglishRycharde
5Old FrenchRichard
6Medieval LatinRichardus
7FrankishRīkahard
8Proto-GermanicRīkaharduzA male given name
9Proto-Germanicrīksking, ruler
10Proto-Celticrīxsking
11Proto-Indo-Europeanh₃rḗǵsking, ruler
12Proto-Indo-Europeanh₃reǵ-to straighten, to right oneself; right; just

via Esperanto petrolo

StepLanguageWordMeaning
1Esperantopetrolopetroleum, oil; kerosene
2Medieval Latinpetroleum
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 h₃reǵ-Every word from Proto-Indo-European h₃rḗǵsEvery word from Proto-Celtic rīxs