A more thorough explanation:

Definition: De deceptione (dee di-sep-shee-oh-nee), n. [Law Latin “of deceit”] is a historical writ that was available to a party who was deceived and suffered damages by someone acting in the party's name.

Example: John gave his friend, Tom, the authority to sell his car. Tom sold the car to someone else and kept the money for himself. John can use the writ of de deceptione to sue Tom for damages caused by his deceitful actions.

The example illustrates how the writ of de deceptione was used in cases where someone acted in the name of another person and caused damages through deceitful actions. The writ allowed the victim to seek legal recourse and recover damages caused by the deceitful party.