Both the Greek appellation of the book, To deuteronomion (hence Latin Deuteronomium), and the Hebrew appellation, Mishneh Torah (Sipre, $160, based on Deut 17:18; Josh 8:32), mean 'repeated law' or 'second law' and allude to the fact that Deuteronomy is a (revised) repetition of a large part of the law and history of the Tetrateuch (the first four books): compare Nahmanides to Deut 1.1 and Ibn Ezra to Deut 1:5.