G0669–ἀποφθέγγομαι–apophthengomai

And they were all filled with [ergänzt: the] Holy Spirit, and began to speak with other tongues as the Spirit gave to them to speak forth.

ἀποφθέγγεσθαι apophthengesthai “to utter forth”

But Peter, standing up with the eleven, lifted up his voice and spoke forth to them, Men of Judaea, and all ye inhabitants of Jerusalem, let this be known to you, and give heed to my words:

ἀπεφθέγξατο apephthegxato “spoke forth”

But Paul said, I am not mad, most excellent Festus, but utter words of truth and soberness;

ἀποφθέγγομαι. apophthengomai “I utter.”