What does is mean that the Three Wise Men prostrated themselves?

Answer 1

Prostrated means: lay oneself flat on the ground face downward, especially in reverence or submission. One can find the reference in verse 11 of Matthew Ch 2. The English word Prostrated was not used in the KJV translation.

Matthew 2

7 Then Herod, when he had privily called the wise men, enquired of them diligently what time the star appeared.

8 And he sent them to Bethlehem, and said, Go and search diligently for the young child; and when ye have found him, bring me word again, that I may come and worship him also.

9 When they had heard the king, they departed; and, lo, the star, which they saw in the east, went before them, till it came and stood over where the young child was.

10 When they saw the star, they rejoiced with exceeding great joy.

11 And when they were come into the house, they saw the young child with Mary his mother, and fell down, and worshipped him: and when they had opened their treasures, they presented unto him gifts; gold, and frankincense and myrrh.

12 And being warned of God in a dream that they should not return to Herod, they departed into their own country another way.