corrigendum
noun
cor·ri·gen·dum ˌkȯr-ə-ˈjen-dəm 
ˌkär-
plural corrigenda ˌkȯr-ə-ˈjen-də
ˌkär-
: an error in a printed work discovered after printing and shown with its correction on a separate sheet
Did you know?
If you guessed that "corrigendum" might be connected to the word correct, you are quite right. Both "corrigendum" and "correct" derive from the Latin verb corrigere, which means "to correct." The noun "corrigendum" and its plural "corrigenda" came to us unaltered from Latin in the early 19th century. The verb "correct" is much older; it has been part of our language since at least the 14th century. Other descendants of the very correct "corrigere" include "incorrigible" and "escort."
Word History
Etymology
Latin, neuter of corrigendus, gerundive of corrigere to correct
First Known Use
1823, in the meaning defined above