sheikh
noun
[ ʃeɪk ]
• an Arab leader, in particular the chief or head of an Arab tribe, family, or village.
• "Sheikh Zayed Bin Sultan al-Nahyan"
• a leader in a Muslim community or organization.
Origin:
late 16th century: based on Arabic šayḵ ‘old man, sheikh’, from šāḵa ‘be or grow old’.