SHEIK Means the (old man) in arabic language , in the past most of the Arabic Tribes leaders and richest were Old and day by day it become as the name of Governor or the richichest People

EMIR Means (the person who gives Orders)it was the name of any group leader and day by day it become as the name of Governor or the sons of Governor

Sultan (Over rich and Who have the power to lead People) it is the name of Governor

Malik = King