[rodelrod]

> frankly you don't have enough information to say that there is no relation

I'm not a scholar of this subject. If there is good scholarship out there presenting good arguments in your direction I'll take it. I was just helping out a fellow that has a doubt with my best knowledge of the subject, which is not just a guess.

> has been used as a metaphor for the origin of things for thousands of years, even ancient Greece

Has it really? I'd love to see an example. Sure it's listed in the Bible along with a bunch of other place names, but as a metaphor for the origin of things?

Even if there are examples, I'd really love to see an etymological trace of how it would end up as a prefix. Was it used as such in ancient Greek? In Latin? Sounds like a folk etymology.

[darksaints]

Yeah, on second glance I might be confusing some of my sources here. I can’t seem to find what I thought I was remembering.

Regardless, there seems to be a significant distinction between words using a concatenated ur prefix and those using a hyphenated ur-(noun) prefix. In this case, the usage does seem to imply an original language from which all others are derived, and the metaphor seems apt even if it is not historically accurate to say that’s where it came from.