φθέγγομαι [in LXX for עָנָה, נָבַע hi., etc. ;] of men or animals, to utter a sound or voice: absol., Act.4:18; before ἐν φωνῇ, 2Pe.2:16; with accusative, ὑπέρογκα, 2Pe.2:18.† (AS)
STRONG'S WORD STUDY
G5350 — φθέγγομαι
phthengomai · to speak · Greek
3 tagged verse occurrences
Acts 4:18 · φθέγγεσθαιThen they called them in again and commanded them not to speak or teach at all in the name of Jesus.2 Peter 2:16 · φθεγξάμενονBut he was rebuked for his transgression by a donkey, otherwise without speech, that spoke with a man’s voice and restrained the prophet’s madness.2 Peter 2:18 · φθεγγόμενοιWith lofty but empty words, they appeal to the sensual passions of the flesh and entice those who are just escaping from others who live in error.