corrigendum
noun /ˌkɒrɪˈdʒendəm/
  /ˌkɔːrɪˈdʒendəm/
(plural corrigenda 
 /ˌkɒrɪˈdʒendə/
  /ˌkɔːrɪˈdʒendə/
)- something to be corrected, especially a mistake in a printed bookWord Originearly 19th cent.: Latin, neuter gerundive of corrigere ‘bring into order’, from cor- ‘together’ + regere ‘guide’.