βριμόομαι
From LSJ
οὕτω τι βαθὺ καὶ μυστηριῶδες ἡ σιγὴ καὶ νηφάλιον, ἡ δὲ μέθη λάλον → silence is something profound and mysterious and sober, but drunkenness chatters
English (LSJ)
A = βριμάομαι, ἐβριμοῦτο τῷ Κύρῳ was indignant with Cyrus, X.Cyr.4.5.9 (expld. by ἀπειλεῖ Ael.Dion.Fr.95): abs., Ph.1.681.