Diesel

google

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late 19th century: named after R. Diesel (see Diesel, Rudolf).

wiktionary

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Named after inventor Rudolf Diesel, who developed a heavy-duty engine in Germany (1892–1897) and perfected it throughout his life.

etymonline

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diesel (adj.)

also Diesel, type of internal combustion engine, 1894, named for Rudolf Diesel (1858-1913), German mechanical engineer who designed this type of engine.