πολύστομος
From LSJ
Τὸ νικᾶν αὐτὸν αὑτὸν πασῶν νικῶν πρώτη τε καὶ ἀρίστη. Τὸ δὲ ἡττᾶσθαι αὐτὸν ὑφ' ἑαυτοῦ πάντων αἴσχιστόν τε ἅμα καὶ κάκιστον. → Τo conquer yourself is the first and best victory of all, while to be conquered by yourself is of all the most shameful as well as evil
English (LSJ)
ον,
A many-mouthed, φλέψ Hp.Oss.13; of a fistula, Heliod. ap. Orib.44.23.67; Νεῖλος v.l. for sq. in Nic.Th. 175. II uttered by many mouths, φήμη Nonn.D.26.275.
German (Pape)
[Seite 674] vielmündig, sp. D., wie Nonn.