Hot dogs are bastardized from three separate Germanic names. Frankfurt sausages sounded a bit formal, so you got “hot dachshunds,” except Americans could neither spell nor pronounce the name of that breed, so you get “hot dogs.” If you asked what a hot dog was you’d probably be told it’s a wiener on a bun, where the English word “wiener” is a loanword from the German conjugation of “from Vienna.” And we’ve come full circle by routinely referring to dachshunds as wiener dogs.
The less-fun tangent about the prominence of German food in American culture is that New York was famed for its wealthy German-American families until all their wives and children were on a boat that sank. I am not joking.