GregOr 13 13.4.9 :ܠܗܠܝܢ ܕܝܢ ܕܪܡ݁ܢ ܥܣܩܘܬ ܡܬܩܢܝܢܘܬܐ‏ : for the exceptional things there is difficulty of acquisition
See the entire entry for meṯqanyānū, meṯqanyānūṯā n.f. acquisition