Related Clues:

• Margin note
• Copy editor's mark
• Proof-ending word
• Alteration canceler
• Note to the typesetter
• Conclusion preceder
• It follows that
• Order on margin?
• "Cogito --- sum"
• Leave
• Editor's override
• Let stand, in editorial parlance
• 'Never mind' to an editor
• Dele reverser
• By that reasoning