ˈkädəsə̇l noun
( -s )
Etymology: Middle French codicille, from Latin codicillus, diminutive of codic-, codex book — more at code
1.
a. : a legal instrument made subsequently to a will and modifying it in some respects, executed in the same manner as the will itself and forming a part of it, superseding it so far as inconsistent with it
b. Roman law : an informal will that could not institute an heir but could set forth instructions binding upon the heirs and could give legacies, that was initially free from specific requirements (as the appointment of executors) and made orally or in writing often before a public official, but that was later required to be witnessed by five citizens if oral or signed if in writing
c. : a provision, as of document, made subsequently to and appended to the original
d. : appendix , supplement
2.
a. obsolete : a writing tablet
b. archaic : letter III 2