User blog comment:Gundam Legilis/RWBY Panel reactions/@comment-4010415-20150808062744

James Ironwood already proved the "CNR must apply to the first name" theory a long time ago. Ironwood is a color name, James is not.

Also, after lots of searching, I finally gave up after the point of finding out that Shiko can mean rock, so... Nadir's color is probably from Shiko meaning rock.