A more thorough explanation:

quae transeunt per commercium

Quae transeunt per commercium is a Latin term that refers to things that are bought and sold. These are items that are exchanged for money or other goods.

• A car that is sold to a buyer is an example of quae transeunt per commercium.
• A book that is purchased from a bookstore is also an example of quae transeunt per commercium.

These examples illustrate the definition because they both involve the exchange of money for a product. The car and the book are both items that are bought and sold, making them quae transeunt per commercium.