Why are the Jedi referred to as 'knights', while the Sith are 'lords'? Was there any significance to the terms from their relationship in the past?
I used to imagine that it might be revealed that they both used to be part of the ruling class of the early galaxy, but had split apart during a civil war or rebellion. The lords taking one side, the knights backing ..the winners. But I had never heard of anything that supports that concept.