"From the Films
Darth Plagueis (plague)
Darth Maul (maul)
Darth Sidious (insidious)
Darth Tyranus (tyranny)
Darth Vader (invader)
From the Expanded Universe
Darth Bandon (abandon)
Darth Bane (bane)
Darth Cognus (cognizance)
Darth Desolous (desolate)
Darth Karnage (carnage)
Darth Kruhl (cruel)
Darth Maladi (malady)
Darth Malak (malice)
Darth Maleval (malevolent)
Darth Millennial (millennial)
Darth Nihilus (nihilist, annihilate)
Darth Nihl (nill, nihilist)
Darth Revan (revenant, revanche)
Darth Rivan (rivan)
Darth Ruin (ruin)
Darth Ruyn (ruin)
Darth Sion (scion)
Darth Stryfe (strife)
Darth Talon (talon)
Darth Tenebrous (tenebrous)
Darth Traya (betrayer)
Darth Vectivus (invective)
Darth Wyyrlok (warlock)"
--Leland Chee, Keeper of the Holocron