What does the word codicil mean?

Usage examples for codicil

  1. Then, a little later, a codicil is added in favour of John, showing that Jeffrey had felt the necessity of making some recognition of his brother. – The Mystery of 31 New Inn by R. Austin Freeman
  2. The executors had originally been Mr. Castleford and my mother, but by this codicil, Clarence was substituted for the former. – Chantry House by Charlotte M. Yonge
  3. There was yet another codicil. – Coningsby by Benjamin Disraeli