'Broken up' in the Bible

in the eleventh year of Zedekiah, in the fourth month, in the ninth of the month, hath the city been broken up;

then is the city broken up, and all the men of war flee, and go forth from the city by night, the way of the gate between the two walls, that is by the king's garden -- and the Chaldeans are by the city round about -- and they go the way of the plain.