misr

plural amsar

1. historicalAn Arab frontier outpost or garrison town, chiefly in the period of early Islamic expansion.

   The amsar may have been golden, but they were gilded garrisons.

   2019, Tim Mackintosh-Smith, Arabs, Yale University Press, page 205

   2 more examples

   Some of the amsar grew into great cities and eventually became the centers in which a new Islamic culture was elaborated […].

   2010, Fred M Donner, Muhammad and the Believers: At the Origins of Islam, page 137

   Each misr was divided into quarters that hosted different tribes – not only the fighting men, but also their women and children.

   2013, Aminah Beverly McCloud, Scott W. Hibbard, Laith Saud, editors, An Introduction to Islam in the 21st Century