Afghan council of elders, 1843, from Persian jarga "ring of men."
Online Etymology Dictionary, © 2010 Douglas Harper
Examples from the Web for jirgah
The Jirgah may accept terms of peace in the morning, and the camp may be rushed that night.The Story of the Malakand Field Force
Sir Winston S. Churchill
Both sides agreed to call a jirgah, which met, drew up conditions of peace acceptable to both sides, and smoked the pipe of peace.Among the Wild Tribes of the Afghan Frontier
T. L. Pennell