JoshStyl 14.20 :ܬܟܝܠܝܢ ܗܘܘ ܥܠ ܡܡܪܕܘܬܗ ܕܚܣܢܐ‏ : they were relying on the fortified nature of the fortress
See the entire entry for məmarrəḏū, məmarrəḏūṯā n.f. strength of fortification