A more thorough explanation:

Definition: Aller sans jour (a-lay sanzhoor) is a legal term in French that means to go without day. It is used to pray for a final dismissal of a case.

Example: The defendant's lawyer requested the case to aller sans jour, which means they wanted the case to be dismissed permanently.

This legal term is used when a party wants to end the case without any further proceedings. It is a way to request the court to dismiss the case permanently. The example illustrates how the defendant's lawyer used the term to request the court to dismiss the case.