What is "almami"

Almami (Also: Almamy, Almani, Almany) is a title of West African Muslim rulers, used especially in the conquest states of the 19th century. It is a contraction of Amir al-Mu'minin ( Arabic أمير المؤمنين), usually translated "Commander of the Faithful" or "Emperor of the Believers". In the Arabic world, Amir al-Mu'minin is similar to Caliphs and to other independent sovereign Muslim rulers that claim legitimacy from a community of Muslims. It has been claimed as the title of rulers in Muslim countries and empires and is still used for some Muslim leaders.