G0669–ἀποφθέγγομαι–apophthengomai

They were all filled with the Holy Spirit, and began to speak with other languages, as the Spirit gave them the ability to speak.

ἀποφθέγγεσθαι apophthengesthai “to utter forth”

But Peter, standing up with the eleven, lifted up his voice, and spoke out to them, "You men of Judea, and all you who dwell at Jerusalem, let this be known to you, and listen to my words.

ἀπεφθέγξατο apephthegxato “spoke forth”

But he said, "I am not crazy, most excellent Festus, but boldly declare words of truth and reasonableness.

ἀποφθέγγομαι. apophthengomai “I utter.”