de-escalate
verb (used with or without object)
to decrease in intensity, magnitude, etc..
Used to express a completed action that took place before another specific past action occurred.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
By then, prosecutors said, the situation had de-escalated.
From New York Times ● Nov. 20, 2021