The Roman word Vomitorium was not a place where people went to puke, but where they left a building.
This survives in theaters, where the aisles between the seats are often referred to as “voms”.
Love it! Thank you!
An explanation I’d heard before was that when the Pennsylvania Dutch encountered English folk (anyone who’s not Amish/Mennonite/etc), we’d ask what they were, what language that was, and so forth, and they, as they didn’t speak much English, would respond with “Deutsch”. “Oh, you’re Dutch!” “No, Deutsch.” “Yeah, that’s them Dutch people I was telling you about, honey.”
I think this other one is slightly more plausible, but it’s close.