G5350–φθέγγομαι–phthengomai

And having called them, they charged them not to speak at all, nor to teach, in the name of Jesus,

φθέγγεσθαι phthengesthai “to speak”

and had a rebuke of his own iniquity -- a dumb ass, in man's voice having spoken, did forbid the madness of the prophet.

φθεγξάμενον phthegxamenon “having spoken”

for overswellings of vanity speaking, they do entice in desires of the flesh -- lasciviousnesses, those who had truly escaped from those conducting themselves in error,

φθεγγόμενοι phthengomenoi “speaking words”