Adverb katōterō (lower) in the Gospels-Acts

(Translation from NRSV with a few modifications for a more literal meaning)

Matthew

2: 16When Herod saw that he had been tricked by the wise men, he was infuriated, and he sent and killed all the children in and around Bethlehem who were two years old and lower (katōterō), according to the time that he had learned from the wise men.