Where does “endogas” come from?

endogas (English) comes from English endothermic, from French endothermique, from English endo-, from Ancient Greek ὄνυξ, from Proto-Indo-European h₃nogʰ- — claw, nail; nail.

endogas (English): A gas, rich in carbon monoxide and hydrogen,...

Definitions

  1. A gas, rich in carbon monoxide and hydrogen,...

Ancestry of “endogas”, step by step

endogas traces back through two separate lines of ancestry.

via English endothermic

StepLanguageWordMeaning
1EnglishendothermicOf a chemical reaction that absorbs heat energy...
2Frenchendothermiqueendothermic
3Englishendo-Alternative form of end-; inner; internal, inside
4Ancient Greekὄνυξclaw, nail, hoof, talon; Anything which resembles...
5Proto-Indo-Europeanh₃nogʰ-claw, nail; nail

via English gas

StepLanguageWordMeaning
1EnglishgasMatter in a state intermediate between liquid and...
2Dutchgasgas; liquefied petroleum gas; unpaved street
Every word from Proto-Indo-European h₃nogʰ-Every word from Ancient Greek ὄνυξEvery word from English endo-