I love this name, it is pronounced [ar-ree-ahn]. It is listed as being a Welsh girls name with a meaning of: Silver, shiny stars in the sky. While its said to be a girls name I think it looks and sounds like a boys name, so I will list this as unisex. If u are looking for something for a boy or girl that is different and unique that is not off the wall and has a familiar sound to it, I'd say this is it!
