The -istan suffix means "land of". Similar to ScotLand, IreLand, etc. So Tajikistan means: the land of Tajiks, Afghanistan means the land of Afghans, Kurdistan

The -istan suffix means "land of". Similar to ScotLand, IreLand, etc. So Tajikistan means: the land of Tajiks, Afghanistan means the land of Afghans, Kurdistan means the land of Kurds, etc