φθέγγεσθαι
From LSJ
οὗτος μὲν ὁ πιθανώτερος τῶν λόγων εἴρηται, δεῖ δὲ καὶ τὸν ἧσσον πιθανόν, ἐπεί γε δὴ λέγεται, ῥηθῆναι → this is the most credible of the stories told; but I must relate the less credible tale also, since they tell it
Greek > English (Woodhouse Verbs Reversed)
(see also φθέγγομαι): articulate, utter, break silence, cry out, give utterance to, pipe of birds, sound of a trumpet, squeak of animals
Lexicon Thucydideum
edere vocem, to utter a cry, 7.70.6, 7.71.4.