Letup (noun)

1. A decrease in intensity or severity of something; a slackening.
2. A temporary cessation of activity or progression.

Origin:

From let up, phrase meaning to reduce in intensity or to stop.

Examples:

1. The storm showed no sign of letup and continued to rage for hours.
2. The company's profits showed a letup in the last quarter.
3. The letup in the war allowed the refugees to return to their homes.
4. The team's defense showed a letup in the second half of the game.
5. The runner's pace slowed during the last mile due to a letup in energy.