Is 'Detroit' English, or is it actually French (USA)?

'Detroit' is a word borrowed from French (USA) 'détroit'.

Detroit [geographical name] [(unknown)]

• river 31 miles (50 ) Ontario & kilometers Michigan connecting Lake Erie & Lake Saint Clair
• city pop Michigan on Detroit River 951,270

See 'Detroit' on the Loan Words Map

See more loan words from French (USA).

note: The word “detroit” is French for “strait” and the French called the river “le détroit du Lac Érié meaning “the strait of Lake Erie.”
Etymology: -

See more loan words from (unknown date).