A more thorough explanation:

Ponendo sigillum ad exceptionem is a Latin legal term that means "for putting a seal to an exception." It refers to a writ that directs justices of assize to preserve exceptions taken by a party in a case.

For example, if a defendant in a court case raises an exception to a piece of evidence, they may request that the court issue a ponendo sigillum ad exceptionem writ to ensure that the exception is preserved and considered by the court.

Another example could be if a plaintiff raises an exception to a judge's ruling, they may request a ponendo sigillum ad exceptionem writ to ensure that the exception is preserved for appeal.

These examples illustrate how the writ is used to ensure that exceptions raised by a party in a legal case are preserved and considered by the court. It is a way to protect a party's rights and ensure that the legal process is fair and just.