A more thorough explanation:

Definition: Sua sponte is a Latin term that means "of one's own accord; voluntarily." In legal terms, it is used to indicate that a court has taken notice of an issue on its own motion without prompting or suggestion from either party.

For example, if a court notices that a case has not been moving forward due to lack of action from either party, the court may dismiss the case sua sponte, meaning the court is dismissing the case on its own initiative without being asked to do so by either party.

Another example is when a court enters a motion to dismiss for want of jurisdiction even though both parties have agreed to appear in the court. This means that the court has noticed that it does not have the authority to hear the case and is dismissing it on its own initiative.

Overall, the term "sua sponte" is used to describe a court's ability to take action on its own initiative without being prompted by either party.