Codicil

n. addition to a will

Codicil can refer to:codicil (will): An addition made to a willAny addition made subsequent and appended to the original.Any addition or appendix, such as a corollary to a theoremCodicil (poem): A poem by Derek Walcott
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Noun
1. a supplement to a will; a testamentary instrument intended to alter an already executed will
(hypernym) appendix
(part-holonym) will, testament
(classification) law, jurisprudence

n. codicil, addition to a will

(n.)
A clause added to a will.