Danneel - I've seen it used on a female, but apparently it can also be male. The origin is Hebrew, and I believe it's a variant on "Daniel". Can also be spelled with only one "n".
There is one I recently tried to find on your site that turned up no results even though it is in fact a name. It is the name Kader and it is a boys name. It is Arabic and it means able (as in capable).
If I find any more I would be happy to list them here for you :D
I think there needs to a female option for the name Miller, as I know a handful of girl Millers.