Sith apprentice

A Sith apprentice was an individual (occasionally a child) that began serious training under a Sith Master, usually chosen by the Master themselves, after the potential apprentice displayed an impressive act of loyalty or cruelty. In some cases, the individual pledged themselves to the teachings of the Sith Master, thereby becoming the apprentice. In other situations, the Master sought out the student, being guided by the will of the dark side of the Force. Sith apprentices were analogous to Jedi Padawans, and the relationship between Sith Master and apprentice was the analog to Jedi Knight and Padawan. A Sith apprentice's time as a student ended either with his or her death, or when the apprentice killed the master, taking on an apprentice of his or her own, thereby ascending to the rank of Sith Master.

Text and facts from the “Sith apprentice/Legends” article on Wookieepedia, licensed under CC BY-SA 3.0. Modified for this site.