DeMundo 139:1 :ܚܡ̈ܫܐ ܐܬܪ̈ܘܬܐ ܕܚܒܝܫܝܢ ܒܓܘ ܚ̈ܕܕܐ ܐܣܦܪܐܝܬ݁‏ : five regions that are enveloped within each other in a spherical manner
See the entire entry for ˀespērāˀīṯ adv. in a spherical manner