A more thorough explanation:

Definition: Temerarium perjurium super assisam (tem-uh-rair-ee-uhm puhr-juur-ee-uhm s[y]oo-puhr uh-sI-zuhm) is a Latin legal term that refers to a rash perjury on an assize. It describes a perverse verdict returned by a jury.

Example: If a jury in a criminal trial deliberately gives a false verdict, they are committing temerarium perjurium super assisam. For instance, if a jury finds a defendant guilty of a crime they did not commit, it would be a perverse verdict.

The example illustrates how the phrase is used in a legal context to describe a situation where a jury returns a verdict that is not based on the evidence presented in court. It shows that the phrase is used to describe a serious offense that undermines the integrity of the legal system.