παντακύριος
From LSJ
κεραυνὸν ἐν γλώττῃ φέρειν → carry a thunderbolt on his tongue
English (LSJ)
παντακύριον, all-supreme, dub. in PMag.Lond.46.139.
Greek (Liddell-Scott)
παντακύριος: -ον, πάντων κύριος, παντακύριε βασιλεῦ Pag. mag. PK. XLVI (saec IV) 139.