Word Origin & History
1894, Amer.Eng., from Ger. Frankfurter "of Frankfurt," because a sausage somewhat like a U.S. hot dog was originally made in Germany, where it was associated with the city of Frankfurt am Main (lit. "ford of the Franks on the River Main"). Attested from 1877 as Frankfort sausage. Shortened form frank
first attested 1936.