Corigendum or Corrigendum: How To spell?
The word Corigendum is misspelled against Corrigendum, a noun meaning "A fault or error to be corrected."
Corrigendum has double "rr" is mispronounced as "r"Remember double 'RR' in between the strings co & igendum which should not be misspelled with single 'R'
Wrong Spelling:  co-r-igendum  Correct Spelling:  co-rr-igendum 
Check more misspelled words of Corrigendum to spell it correct.