Sheikh is an honorific title in the Arabic language, literally meaning "elder". It commonly designates a tribal chief or a Muslim scholar.
Kurdish sheikhs, 1895
Mustafa Sabri Effendi, the second last Shaykh al-Islām (ultimate authority on religious affairs) of the Ottoman Empire and Caliphate, 1919-1920
Sheikh Ali Ayanle Samatar, a prominent Somali Islamic scholar.
Pakistani Sheikh Syed Abdul Qadir Jilani, a prominent Sunni scholar
Prior to its use as a monarchical title, the term "emir" was historically used to denote a "commander", "general", or "leader". In contemporary usage, "emir" is also sometimes used as either an honora
Sheikh
…Iltizam system, the title gained a noble instead of royal connotation, since it was bestowed by a higher authority; in this case the Ottoman appointed Emir, who was nothing more than a mültezim or tax collector for the empire. Some very influential Maronite families, who had the title bestowed upon them…
The court of the Durrani Emirate of Afghanistan (James Rattray, 1839)
Emir of Kano, Sanusi Lamido Sanusi