The most common and most likely answer to this crossword clue is the 5 letter word BYLAW which also is the latest solution we found used in New York Times in 1954.
Addendum to a constitution crossword clue answers
Here's a list of possible crossword answers ranked by the most likely to least likely.
| Answer | Likelyness | Letters | 
|---|---|---|
| BYLAW | 100 % | 5 | 
Words with a meaning similar to the clue: Addendum to a constitution
These words may or may not be a possible solution to this crosswords clue.- amendment
 - addend
 - addition
 - annex
 - appendix
 - insert
 - inset
 - plus
 - postscript
 - summation
 - aggregation
 - contents
 
Crossword Answer definitions
BYLAW noun- A local custom or law of a settlement or district.
 - A rule made by a local authority to regulate its own affairs.
 - A law or rule governing the internal affairs of an organization (e.g., corporation or business).
 
More crossword clues leading to the same solutions
Here's a few more crossword clues - all leading to the identical solution