Afghanistan

The name Afghanistan literally translates to Land of the Afghans. Its modern usage derives from the word Afghan. The Pashtuns began using the term Afghan as a name for themselves from the Islamic period onwards. According to W.K. Frazier Tyler, M.C. Gillet and several other scholars. The last part of the name Afghanistan originates from the Persian word sta¯n (country or land). The English word Afghanland that appeared in various treaties between Qajar-Persia and the United Kingdom dealing with the lands between Persia and British Raj inhabited by Pashtun tribes (modern Southeastern Afghanistan) was adopted by the Afghans and became Afghanistan.

(excerpt above taken from (Wikipedia)

Wikipedia - Afghanistan

http://www.afghanistans.com