Amsar
Amṣar (Arabic: أمصار), refer to civilised cities and large areas in which houses, markets, schools and other public facilities are located. The plural form also sometimes referred to 'garrison towns' or structures that were established by Muslim warriors in conquered lands, in the first centuries of Islam.
In the early years of Islamic expansion, the term misr was applied to new settlements founded by Muslim troops in conquered territories. The original Semitic meaning was "frontier" or "border", and took the meaning of "frontier outpost" when used by early Arab geographers. An administrative territorial unit led by an appointee of the caliph also became known as a misr. From the common noun for "garrison city", Misr became the name of Egypt's new Arab capital, and with time the entire country became known under this new Arabic name. The first misrs were created under Caliph Omar during his reign from AD 634 to 644. Many of these garrisons attracted civilians and became towns.