A more thorough explanation:

gestum

Gestum is a Latin word used in Roman law to mean a deed or an act that has been done.

1. The signing of a contract is a gestum.

2. The delivery of goods is also a gestum.

These examples illustrate that gestum refers to any action or deed that has been completed. In the first example, the signing of a contract is a gestum because it is an act that has been done. Similarly, in the second example, the delivery of goods is also a gestum because it is an action that has been completed.