καλόγλωττος
From LSJ
τὸ κατὰ τὴν τῆς αὑτοῦ ψυχῆς ἐπίταξιν τὰ γιγνόμενα γίγνεσθαι, μάλιστα μὲν ἅπαντα, εἰ δὲ μή, τά γε ἀνθρώπινα → the desire that, if possible, everything,—or failing that, all that is humanly possible—should happen in accordance with the demands of one's own heart
Greek (Liddell-Scott)
καλόγλωττος: -ον, = εὔγλωττος, Κωνστ. Μανασσ. Χρον. 78C.