See the entire entry for ˀeḥāḏā, ˀeḥāḏā v.n. holding

TgProv18:19var :היך קריתא עשינתא ואחדא היך סוכרא דחוסנא : like a fortified city locking up like the bolt of a fortress

See the entire entry for sukkar, sukkǝrā n.m. bolt