Septuagint
SEP'TUAGINT, noun [Latin septuaginta, seventy; septem, seven, and some word signifying ten.] A Greek version of the Old Testament, so call because it was the work of seventy, or rather of seventy-two interpreters. This translation from the Hebrew is supposed have been made in the reign and by the order of Ptolemy Philadelphus, king of Egypt, about two hundred and seventy or eighty years before the birth of Christ.
SEP'TUAGINT, adjective Pertaining to the Septuagint; contained in the Greek copy of the Old Testament.
The Septuagint chonology makes fifteen hundred years more from the creation to Abraham, than the present Hebrew copies of the Bible. Encyc.