Sith (individual)

A Sith was a Force-sensitive individual who was a member of the Sith Order. For the most part they were taken from their families at a young age they were trained in the ways of the Force for their entire lifetime. Although in times of conflict it became common place for fully trained Jedi Knights to betray their Order and join the Sith. They came from almost any species and fought in a variety of ways.

They had four ranks;
 * Dark Lord of the Sith (i.e. Darth Abeonis *, Darth Wyyrlok, Darth Krayt)
 * Sith Lord (i.e. Darth Adsec, Darth Micail, Darth Nihilus, Darth Hiljo)
 * Sith Knight (i.e.Darth Nihl, Darth Iiniuria)
 * Sith Apprentice