ἀποφθέγγομαι

Acts 2:4 ἀποφθέγγεσθαι to utter forth

And they were all filled with the Holy Spirit and began to speak in other tongues as the Spirit enabled them.

Acts 2:14 ἀπεφθέγξατο spoke forth

Then Peter stood up with the Eleven, lifted up his voice, and addressed the crowd: “Men of Judea and all who dwell in Jerusalem, let this be known to you, and listen carefully to my words.

Acts 26:25 ἀποφθέγγομαι. I utter.

But Paul answered, “I am not insane, most excellent Festus; I am speaking words of truth and sobriety.