OS.P3 5 :ܘܒܐܪܟܘܢܘܬܐ ܕܡܪܩܘܣ ܐܘܪܠܝܘܣ ܐܠܟܣܢܕܪܘܣ‏ : during the magistracy of Marcus Aurelius Aleksander
See the entire entry for ˀarkōnū, ˀarkōnūṯā n.f. magistracy