the.com/hydrocarbon

means An organic compound made up of only hydrogen and carbon atoms, the chemical backbone of fuels like oil, gas, and coal.

from A 19th-century chemist's compound coinage, built straightforwardly from 'hydrogen' and 'carbon' — themselves 18th-century chemistry names. 'Hydrogen' comes from Greek hydro- ('water') plus -gen ('producer'), since burning it produces water; 'carbon' comes from Latin carbo, meaning charcoal or coal. The word 'hydrocarbon' itself isn't a myth or metaphor — it's chemistry's own tidy label, naming the molecule exactly for what it's made of.