fuelyoudaoicibaDictYouDict[fuel 词源字典]
fuel: [14] The notions of ‘fuel’ and ‘fire’ are closely connected etymologically. Fuel comes via Anglo-Norman fuaille from medieval Latin focālia, which was used in legal documents as a term for the ‘right to demand material for making a fire’. It was a derivative of Latin focus ‘fireplace, fire’, which also gave English focus, foyer, and fusillade.
=> focus, foyer, fusillade[fuel etymology, fuel origin, 英语词源]
fuel (n.)youdaoicibaDictYouDict
c. 1200, feuel, feul "fuel, material for burning," also figurative, from Old French foaille "fuel for heating," from Medieval Latin legal term focalia "right to demand material for making fire, right of cutting fuel," from classical Latin focalia "brushwood for fuel," from neuter plural of Latin focalis "pertaining to a hearth," from focus "hearth, fireplace" (see focus (n.)). Figurative use from 1570s. Of food, as fuel for the body, 1876. As "combustible liquid for an internal combustion engine" from 1886. A French derivative is fouailler "woodyard." Fuel-oil is from 1882.
fuel (v.)youdaoicibaDictYouDict
1590s, "feed or furnish with fuel," literal and figurative, from fuel (n.). Intransitive sense "to get fuel" (originally firewood) is from 1880. Related: Fueled; fueling.