diriment

Caius is going to the altar to be married; Claudius knows of a diriment impediment to the marriage, but cannot make it known without causing a scene and giving great scandal.

The impediment of disparity of worship became diriment through custom; it was custom that introduced the obligation of the Divine Office, and that mitigated the early law of fast.

Example: In itself, it is not unlawful to make an informal will, but it is unlawful to marry with a diriment impediment.

Example: If in a pagan country Christians were so few that they could marry only infidels, and if distance or other circumstances made it impossible to seek a dispensation, the diriment impediment of disparity of worship would seem to cease for those Christians.

Example: One may not contract marriage with a diriment impediment, on the plea that the Church would not wish the impediments to oblige under the serious inconvenience that exists in one's case.