mysteriarch

== English == === Etymology === Borrowed from Ecclesiastical Latin mystēriarchēs (“one who presides over Christian sacraments”), from Ancient Greek μυστηριάρχης (mustēriárkhēs, “one who rules over religious mysteries”), from μυστήριον (mustḗrion) +‎ -άρχης (-árkhēs), corresponding to mystery +‎ -arch. === Pronunciation === IPA(key): /mɪsˈtɪəɹiˌɑː(ɹ)k/ === Noun === mysteriarch (plural mysteriarchs) (obsolete outside of fantasy) One who rules over mysteries.