codicil
noun /ˈkəʊdɪsɪl/
/ˈkɑːdəsl/
(law)- an instruction that is added later to a will, usually to change a part of it
- In the codicil she left the house and its contents to her nephew.
Word Originlate Middle English: from Latin codicillus, diminutive of codex, codic-, literally ‘block of wood’, later denoting a block split into leaves or tablets for writing on, hence a book. See code.