We all know that developer probably made some elaborate, creative, and thoughtful explination of how he came up with the name, but now we all know better! The bastard was probably just riding the train and he just pluraized the name of a Department Store!!!
well, it seems that luminescent, referring to thepretty lights in the game, would be the closest word to derive lumines from. it even has the same spelling, and pronunciation. (loo-min-ess)