Thank you for taking the time to share your findings with me, Halfstargazer. :)
I was aware of the fact that Orian is also used as a feminine name, but it had been my impression that the feminine Orian had different etymological roots, and that's why I didn't mention it in my original post.
I didn't know that Orian was the name of a Titanic survivor, which is indeed very interesting. The name is already rare in this day and age, so I imagine it must have been even rarer in 1884, as most women in those days had very traditional names, such as
Mary,
Elizabeth and
Jane. No doubt Orian Davidson must always have stood out because of her unusual name.
I'm not very surprised to see that the male name Orian is listed as a variant of
Orion and that it was also listed as a male form of
Oriana, since the name is very close to both names in appearance (and pronunciation, in the case of
Orion). But I'm pleased to see that my guess that the name might be Gaelic in origin is actually an option - now I have an idea of what the original Gaelic name was like, in that case. Unfortunately, it's indeed difficult to tell how reliable those websites are - if only they listed what their sources were, then we could have gone to the library and check those books out. But alas, they didn't - so it looks like we'll have to find books (that mention the etymology of Orian) on our own. I think I'd first start with finding an authoritative and reliable book about Welsh names, to see if Orian (or at least
Urien) is mentioned in there and what the author has to say about it.
That's all, I think - thank you again for your input, it was certainly helpful. I wish you a happy and healthy transition into 2014! :)