A more thorough explanation:

Definition: Contra fidem tabularum nuptialium is a Latin term used in Scots law to refer to actions that go against the provisions of a marriage contract. This phrase is usually used in reference to antenuptial contracts.

Example: If a couple signs an antenuptial contract that specifies how their assets will be divided in case of a divorce, but one of the spouses tries to hide some of their assets during the divorce proceedings, they are acting contra fidem tabularum nuptialium.

Explanation: The example illustrates how the term contra fidem tabularum nuptialium is used in Scots law to refer to actions that violate the provisions of a marriage contract. In this case, one of the spouses is not following the terms of the antenuptial contract they signed, which is considered a breach of trust and can have legal consequences.