condonation

Definition from Nolo’s Plain-English Law Dictionary

One person's approval of another's activities, constituting a defense to a fault divorce. For example, if a wife did not object to her husband's adultery even though she was aware of it, and she later tries to use it as grounds for a divorce or the basis for a settlement in her favor, he could counter these efforts by arguing that she had condoned his behavior.

Definition provided by Nolo’s Plain-English Law Dictionary.