مُسَيْطِرٌ
Root: سطر
Full Definition
مُسَيْطِرٌ
and
مُسَطِّرٌ , as also مُصَيْطِرٌ, One who has, or exercises, absolute authority over others: one who is set in absolute authority over a thing [or people], to oversee it, and to pay frequent attention to its various states or conditions, and to write down its manner of action: from السَّطْرُ: or a watcher and guardian; one who pays frequent attention to a thing.