Et dictus codex per translationem a codicibus arborum seu vitium, quasi caudex, quod ex se multitudinem librorum quasi ramorum contineat. "A codex is composed of many books; a book is of one scroll. It is called codex by way of metaphor from the trunks of trees or vines, as if it were a wooden stock (caudex), because it contains in itself a multitude of books, as it were of branches."