the oldest Greek version of the Old Testament, traditionally said to have been translated by 70 or 72 Jewish scholars at the request of Ptolemy II: most scholars believe that only the Pentateuch was completed in the early part of the 3rd century b.c. and that the remaining books were translated in the next two centuries.
"Greek version of the Old Testament," 1633, from L.L. septuaginta interpretes "seventy interpreters," from L. septuaginta "seventy," from septem "seven" + -ginta "tens." So called in allusion to the (false) tradition that the translation was done 3c. B.C.E. by 70 or 72 Jewish scholars from Palestine and completed in 70 or 72 days. Often denoted by Roman numerals, LXX. The translation is believed now to have been carried out at different times by Egyptian Jews.