Definition - What does Codicil mean?
A codicil is a legal paper that reflects changes to someone's last will and testament. Using a codicil enables the person who wants to amend their will to do so without rewriting the entire thing. To avoid any confusion or misunderstandings, the codicil should indicate that all of the stipulations in the will should remain unchanged, except for those specifically addressed by the codicil.
Justipedia explains Codicil
Generally, there are no restrictions on the types of changes that can be made in codicils, nor are there any restrictions on the number of codicils that someone can make.
However, attorneys typically warn against making too many codicils or using them to make significant changes. By doing so, the person risks confusion and delays in the settlement of their estate. In a worst-case scenario, the confusion created by the use of too many codicils can result in the invalidation of the codicils and/or the will itself.
Codicils can also be invalidated if they are not prepared and authorized in a manner conforming with certain parameters.