Where does “electrofuel” come from?

electrofuel (English) comes from English fuel, from Middle English fuayle, from Old French fouaille, from Old French feu, from Late Latin focus, from Latin focus — fireplace, hearth; firepan, coal pan, brazier;...

Ancestry of “electrofuel”, step by step

electrofuel traces back through two separate lines of ancestry.

via English fuel

StepLanguageWordMeaning
1EnglishfuelSubstance consumed to provide energy through...
2Middle EnglishfuayleFuel; items to be burnt
3Old Frenchfouaillefirewood; torch
4Old Frenchfeufire
5Late Latinfocusfire
6Latinfocusfireplace, hearth; firepan, coal pan, brazier;...

via English electro

StepLanguageWordMeaning
1EnglishelectroAn electrotype; An electronic style of hip hop;...
Every word from Latin focusEvery word from Late Latin focusEvery word from Old French feu
electrofuel — Etymology, Origin & Word History | Etymology Explorer