The meaning of “διαπορέω”

“Now Herod the tetrarch heard of all that was done by him: and he was perplexed, because that it was said of some, that John was risen from the dead;”

“And it came to pass, as they were much perplexed thereabout, behold, two men stood by them in shining garments:”

“And they were all amazed, and were in doubt, saying one to another, What meaneth this?”

“Now when the high priest and the captain of the temple and the chief priests heard these things, they doubted of them whereunto this would grow.”

“Now while Peter doubted in himself what this vision which he had seen should mean, behold, the men which were sent from Cornelius had made enquiry for Simon’s house, and stood before the gate,”