Present participle of crescendo; gradually increasing in volume, intensity, or magnitude.
From Italian 'crescendo' plus the English present participle suffix '-ing.' This allows musicians and speakers to use the Italian term as a regular English verb.
A crescendoing argument is actually a studied phenomenon in psychology—people naturally escalate volume and emotion as a conflict unfolds, which is why arguments often feel inevitable once they start, and why trained mediators interrupt early escalations.
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