Tajdid
Tajdīd (Arabic: تجديد) is the Arabic word for renewal. In Islamic context, Tajdīd refers to the revival of Islam, in order to purify and reform society, to move it toward greater equity and justice. One who practices Tajdīd is a Mujaddid. Compare: Islah
Further reading
Alvi, Sajida S. "The Mujaddid and Tajdīd Traditions in the Indian Subcontinent: An Historical Overview." Journal of Turkish Studies 18 (1994): 1-15.