inaudibly
From LSJ
Σοφοῦ παρ' ἀνδρὸς προσδέχου συμβουλίαν → Tu non nisi a prudente consilium pete → Von einem weisen Mann nur nimm Beratung an
English > Greek (Woodhouse)
adverb
speaking inaudibly: V. ἄπυστα φωνῶν (Sophocles, Oedipus Coloneus 489).