Misr: The historical Zensunni (Fremen) term for themselves: "The People". Apparently the Misr Sunni ancestors fled from Nilotic al-Ourouba to become the Fremen and or Zensunni.
Behind the scenes[]
Miṣr is the Arabic and modern official name of Egypt. The word
is of Semitic origin, directly related to other Semitic words for Egypt such as the Hebrew "מִצְרַיִם" ("Mitzrááim") and Akkadian "mi-iṣ-ru" ("miṣru")
and originally connoted "metropolis" or "civilization" and means "country", or "frontier-land".