Petrol

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late 19th century: from French pétrole, from medieval Latin petroleum (see petroleum).

wiktionary

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From French(essence de) pétrole, from Medieval Latin petroleum, from Ancient Greek πετρέλαιον(petrélaion, “oil of the rock”), from πέτρα(pétra, “stone, rock”)+ ἔλαιον(élaion, “olive oil, any oily substance”)

etymonline

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petrol (n.)

"gasoline, refined petroleum used in motor-cars," 1895, from French pétrol (1892); earlier used (1580s) in reference to the unrefined substance, from petrole "petroleum" (13c.), from Medieval Latin petroleum (see petroleum).