Weirdest spelling for Sambar

Last week I went to an Indian restaurant in Minneapolis with my long time friend. As we were a bit late, we were asked to take all we can in the next 15 minutes as they going to take away the food. I saw masala dosa and it being my favorite, took 2 pieces of "sliced" masala dosa. Next to it was a dark and watery concoction labelled "Somber".

I was taken aback a bit by the spelling for the most famous South Indian delicacy - Sambar..a.k.a Sambhar. But "Somber" was just too much. I din't pay much attention to it till yesterday as I had nothing else to do..

Why would they have named it Somber? Some of the possible reasons..

1) It was dull in color and had a sad look to it..Hence Somber
2) That's the way Americans pronounce Sambar.. Hence Somber
3) May be the owner who seemed to be a confused Desi with a phony American accent thought that was the spelling...Hence Somber

If they named it so because, Americans call it that way, then we should have Pitsa Hut, US Pijja and Pisa Corner all over India...Right?