I am actually not sure that the author of Matthew wrote in Greek. While we may not know the original language in which the gospel of Matthew is written, it is written for a Jewish audience and seems to be one of the most colorful, with e.g. many dead saints coming back to life, begging the question of why no one else bothered to write about this stuff. In any event, if this did indeed happen then it's another example of something that doesn't fit our worldview today that nevertheless can take place, like black swans and freak waves.

On a related note, the Hebrew word for "wife" and "woman" are the same. And the same is true of Greek. So quotes of Jesus such as http://biblehub.com/matthew/5-28.htm are probably mistranslated, since it doesn't make sense that two unmarried people can commit adultery, so it's likely that the original word was "wife". And yet because of these translations so many young people's sexual desires were repressed so that they might not look lustfully at any woman, married or not. Whenever I ask other Christians about this kind of stuff, they never seem to have a good answer but continue to insist that it should be "woman", and that young men should still not look with lust at any woman.