darklordoftech said:

I don't want any Darths. Vader not being the only Darth in the prequels was bad enough.

Look... in OT it is clearly stated that Anakin was given a Darth name after he was seduced to the dark side. It is also established that he became a Sith. This is a good indication that the name Darth has something to do with Sith.

And he was seduced by who? Who he calls "master"?

In OT there is enough evidence suggesting Darth was a Sith thing and Palpatine was also a Sith.