A more thorough explanation:

Subreptio is a term used in Roman law that means theft or obtaining a grant from the emperor under false pretenses. It is also known as subreption in French law.

• Stealing someone's wallet is an example of subreptio.
• If someone lies on their application to receive a government grant, they are committing subreptio.

These examples illustrate how subreptio can refer to both physical theft and deception in obtaining something of value.