Mongolian nobility
The Mongolian nobility (Mongolian: ᠢᠵᠠᠭᠤᠷᠲᠠᠨ; yazgurtan; ᠰᠤᠷᠪᠤᠯᠵᠢᠲᠠᠨ survaljtan) arose between the 10th and 12th centuries, became prominent in the 13th century, and essentially governed Mongolia until the early 20th century.
Many Mongol elites would end up assimilating into their Turkic subjects, adopting Islam and Turkic culture while retaining Mongol political and legal institutions. These new Turco-Mongol elites would establish several successor states across the Muslim World.
The Mongolian word for nobility, Yazgurtan, derives from the Mongol word yazgur, meaning "root".