PENTATEUCH, the name found as early as in Tertullian and Origen corresponding to the Jewish 'Twin 'train ntran (the five-fifths of the Torah, or Law), and applied to the first five books of the Old Testament (Genesis, Exodus, Leviticus, Numbers, Deuteronomy). The several books were named by the Jews from their initial words, though at least Leviticus, Numbers, and Deuteronomy had also titles resembling those we use, viz. D'JIS mm, o'lipsn von (Aju/ito-^e/oofoiju, Origen, in Eus., H. E. vi. 25), and mm turn. The Pentateuch, together with Joshua, Judges and Ruth, with which it is usually united in Greek MSS., makes up the Octateuch; the Pentateuch and Joshua together have recently been named the Hexateuch. On the critical questions arising from the Pentateuch or Hexateuch, see BIBLE and the articles on the several books.
Note - this article incorporates content from Encyclopaedia Britannica, Eleventh Edition, (1910-1911)