A more thorough explanation:

Definition: A legal term that means "to go without day". It is used to pray for a final dismissal of a case.

Example: If a case is dismissed and the plaintiff cannot bring it back to court, the judge may say "aller sans jour" to indicate that the case is dismissed permanently.

This term is often used in legal proceedings and is written in Law French. It is important for legal professionals to understand this term and its implications in order to properly handle cases.