χαλκόστομος
From LSJ
εἰρήνη ἡ ὑπερέχουσα πάντα νοῦν → peace that surpasses all understanding
English (LSJ)
ον,
A with mouth of bronze, χ. κώδων Τυρσηνική, i.e. a trumpet, S.Aj.17. II with edge or point of bronze, ἔμβολοι A.Pers.415, Aristid.Or.25(43).4; μέτρον POxy.101.40 (ii A. D.).