σεμνολογεῖν
From LSJ
Εἰ θνητὸς εἶ, βέλτιστε, θνητὰ καὶ φρόνει → Mortalis quum sis, intra mortalem sape → Bist sterblich du, mein Bester, denk auch Sterbliches
Greek > English (Woodhouse Verbs Reversed)
(see also σεμνολογέω): speak pompously, talk pompously