DuPont

US: (do̅o̅ pont′, dyo̅o̅-, do̅o̅′pont, dyo̅o̅′-; for 1, 2 also Fr. dy pôn′)

WordReference Random House Unabridged Dictionary of American English © 2025

Du•Pont  (do̅o̅ pont′, dyo̅o̅-, do̅o̅′pont, dyo̅o̅′-; for 1, 2 also Fr. dy pôn′), n. 

E•leu•thère I•ré•née  (e lœ ter′ ē rā nā′), 1771–1834, U.S. industrialist, born in France. Pierre Sam•u•el  (pē âr′ sam′yo̅o̅ əl; Fr. pyer sa my el′), 1739–1817, French economist and statesman (father of Eleuthère Irénée).
1. Biographical Samuel Francis, 1803–65, Union admiral in the U.S. Civil War.

Also, Du Pont′.