'Dark Jedi' was coined by Timothy Zahn in his 1991 Legends novel, Heir to the Empire, which described any Force-user who fell to the Dark Side or wasn't trained by the Jedi Order. Let's take a look at the history of the term and some notable Dark Jedi throughout Star Wars Legends. Before the word 'Sith' became a common name for Dark Side Force-wielders, many antagonists such as Palpatine and Darth Vader were called Dark Jedi. The Dark Jedi have fallen out of Star Wars canon, but they used to be an integral part of the lore.