Literally, “guard of the archives”.
ܢܵܛܲܪ ܐܲܪ̈ܟܹܐ • (nāṭar arkē) m (plural ܢܵܛܪ̈ܲܝ ܐܲܪ̈ܟܹܐ (nāṭray arkē), feminine ܢܵܛܪܲܬ݂ ܐܲܪ̈ܟܹܐ (nāṭraṯ arkē))