Possible Clues:

• Void, top mark struck from book
• Set aside article out of book
• Set aside book, one adult left out
• Invalidate yearbook where second article expunged
• Invalidate points, blocking gold medal finally
• To cancel the validity of something, such as a contract or election result
• Undo, legally
• Invalidate at the outset archaic names not used lately
• Cancel; revoke
• Declare legally invalid