de-escalate

verbs

diminish in size, scope, or intensity
"The war of words between them de-escalated with time"
de-escalate
is derived from
de-escalation
is a type of (narrower)
decrease in size, extent, or range
"The amount of homework decreased towards the end of the semester"; "The cabin pressure fell dramatically"; "her weight fell to under a hundred pounds"; "his voice fell to a whisper"
decrease, diminish, fall, lessen
reduce the level or intensity or size or scope of
"de-escalate a crisis"
de-escalate, step down, weaken
is derived from
de-escalation
antonym
escalate