It is also known as Hellenistic Greek, New Testament Greek, and sometimes Biblical Greek since it was the original language of the New Testament, and the Old Testament was translated into the same language via the Septuagint.
Since it was the original language of the New Testament. This was what it is also known as Hellenistic Greek, New Testament Greek, and sometimes Biblical Greek. The Old Testament was translated into the same language via the Septuagint.