διαψιθυρίζω
From LSJ
ἀλλ' ἐπὶ καὶ θανάτῳ φάρμακον κάλλιστον ἑᾶς ἀρετᾶς ἅλιξιν εὑρέσθαι σὺν ἄλλοις → even at the price of death, the fairest way to win his own exploits together with his other companions | but even at the risk of death would find the finest elixir of excellence together with his other companions | but to find, together with other young men, the finest remedy — the remedy of one's own valor — even at the risk of death
English (LSJ)
A whisper, πρὸς τὸ οὖς προσπίπτων δ. Thphr.Char.2.10. II whisper among themselves, LXXSi.12.18, Plb.15.26.8, Luc. Gall.25.
German (Pape)
[Seite 614] durchzischeln, flüstern, Pol. 15, 26, 8; πρὸς ἀλλήλους, Luc. Somn. 25.