Codex

Lat. A code or collection of laws; particularly the code of Justinian. The Code and Digest appear to be more frequently referred to by the old English law writers, than the other parts of the civil law. Bracton introduces them both in an illustration of a consideration. Do tibi digestum ut des mihi codicem; I give you a Digest that you may give [in consideration of your giving] me a Code. Do tibi codicem ut facias mihi scribi digestum; I give you a code, that you may have a copy made for me of a Digest. Bract. fol.

19.

Codex. A book or manuscript. A copy or counterpart of a written instrument, as a will.

Inst. 2. 10. 13.