n. [ L. pentateuchus, Gr. &unr_;; &unr_; (see Penta-) + &unr_; a tool, implement, a book, akin to &unr_; to prepare, make ready, and perh. to E. text. See Five, and Text. ] The first five books of the Old Testament, collectively; -- called also the Law of Moses, Book of the Law of Moses, etc. [ 1913 Webster ]

a. Of or pertaining to the Pentateuch. [ 1913 Webster ]