It is a double u in English. Naming it differently would be wrong. I think it's a double v in German. Since French doesn't really use it, they could import any

It is a double u in English. Naming it differently would be wrong. I think it's a double v in German. Since French doesn't really use it, they could import any of the names. Portuguese is on the same boat. It imported the double u name, but still has plenty of words where it's a double v... you can't make it all correct.