Running off a conversation I had with my dad while fishing, I wandered around the OED for a while. Apparently, a great deal of tree names (oak, elm, aspen, &c) come straight from Old English. Names of gems (emerald, ruby, sapphire), on the other hand, all come from French. But color names were all over the board; it was kind of like they were all similar in all sorts of different languages, and thus relative to the other two groups they seemed to have almost no particular origin. And on a random note, according to the OED the word "crayfish" comes in a roundabout way from the word "crevasse" in an odd sort of bastardization, and they don't have the word "fuschia."

not exactly martial arts - but I think it would be cool if someone founded a 'fist of the west side' style