A more thorough explanation:

JUS PRAETORIUM

Jus praetorium is a Latin term that means "law of the praetors." It refers to the body of law that was developed through the edicts of the praetors in ancient Rome. This body of law was the main source of Republican reform.

One example of jus praetorium is the edictum praetoris, which was a decree issued by the praetor that had the force of law. Another example is jus honorarium, which was the law created by the praetors to supplement the existing Roman law.

For instance, if a praetor issued an edict stating that a certain type of contract was not enforceable, that edict would become part of the jus praetorium. Similarly, if a praetor created a new legal concept, such as the actio bonae fidei, that concept would become part of the jus honorarium.

These examples illustrate how the praetors played an important role in shaping the legal system of ancient Rome. By creating new laws and legal concepts, they were able to adapt the law to the changing needs of society.