Where does “pyrobitumen” come from?

pyrobitumen (English) comes from English bitumen, from Latin bitumen, from Gaulish bitu, from Proto-Celtic betwiyos, from Proto-Indo-European gʷét- — resin, gum.

pyrobitumen (English): An amorphous fossilized petroleum mineraloid

Definitions

  1. An amorphous fossilized petroleum mineraloid

Ancestry of “pyrobitumen”, step by step

pyrobitumen traces back through two separate lines of ancestry.

via English bitumen

StepLanguageWordMeaning
1EnglishbitumenMineral pitch; a black, tarry substance, burning...
2Latinbitumenmineral pitch, bitumen
3Gaulishbitu—
4Proto-Celticbetwiyos—
5Proto-Indo-Europeangʷét-resin, gum

via English pyro

StepLanguageWordMeaning
1Englishpyroa pyromaniac; pyrocellulose; pyrotechnician
2Ancient Greekπῦρa fire; lightning; a fever
3Proto-Indo-Europeanpéh₂wr̥bonfire; spelt
Every word from Proto-Indo-European gʷét- →Every word from Proto-Celtic betwiyos →Every word from Gaulish bitu →