lapsing

To fall away gradually; to subside.

To fall into error or heresy.

To slip into a bad habit that one is trying to avoid.

To become void.

To fall or pass from one proprietor to another, or from the original destination, by the omission, negligence, or failure of somebody, such as a patron or legatee.

The act or process by which something lapses.

“lapsings of religious faith”