What does Septuagint mean in the Bible?
: a Greek version of the Jewish Scriptures redacted in the third and second centuries b.c. by Jewish scholars and adopted by Greek-speaking Christians.
Why is it called the Septuagint?
The name Septuagint (from the Latin septuaginta, “70”) was derived later from the legend that there were 72 translators, 6 from each of the 12 tribes of Israel, who worked independently to translate the whole and ultimately produced identical versions.