[Opinions] I agree with Chrisell (m)
that it's absurd. Use a name that *means* new, by all means, if that's what you want. But don't just use a different language version of new, simply because a French accent makes it sound better.
Plus, there's the added bonus of the "Nouveau Riche" association. Or the mismatched gender, if you use it on a girl.
Think about this - will Nouveau ever be elected president? Will they successfully head an office? Will they be able to print business cards that aren't confusing? When you limit a child with a name that restricts them to certain avenues when they are grown, I think it's not practical. This doesn't mean we have to be overrun by Elizabeths and Georges, but there's *so* many names to choose from that I think it's fanciful and impractical to randomly pick words that don't have a history of use as a name to use instead. There isn't *anything* else out there that has the same meaning or similar sound? That baffles me.