Definition from Wiktionary, the free dictionary
- (transitive) To uncapitalize (convert the first letter (or more) of (something) from uppercase to lowercase).
- (transitive, law) To remove (something's) status as a capital crime; to cause (something) to no longer be a capital crime.
2009, Stuart Banner, The Death Penalty: an American history, page 131:
- In 1801 Connecticut decapitalized arson, but only where no victim's life had been placed in danger.