A more thorough explanation:

ob contingentiam

Ob contingentiam is a Latin phrase that means "on account of connection" or "by reason of similarity." It was used in legal cases when there was a close enough connection between two or more lawsuits to consolidate them. It can also be used to refer to a situation that may happen in the future.

• Two people were involved in separate car accidents, but both accidents were caused by the same faulty traffic light. The cases were consolidated ob contingentiam because of the connection between them.
• A company may purchase extra insurance ob contingentiam in case of a natural disaster that could potentially disrupt their business operations.

The examples illustrate how ob contingentiam is used to refer to a connection or similarity between two things. In the first example, the connection between the two car accidents was the faulty traffic light. In the second example, the potential natural disaster is the contingency that the company is preparing for.