Who came up with the name Darth Vader? According to Wiktionary (apparentapparently Darth Vader is now warrants a worddictionary entry meaning "a malevolent, dominating and threatening force" :o):
Derived from the fictional character, Darth Vader, itself derived from either Dark Lord of the Sith or a blend of dark and death + Dutch vader (“father”).
How true is the vader = father contention? As the Vader Wikipedia page states, wasn't the father plot twist squeezed in much later? Has Lucas ever acknowledged this connection? Was he perhaps manipulated by the force?