peter out

Idioms  

1. Dwindle or diminish and come to an end, as in Their enthusiasm soon petered out. The origin of this usage is unknown, but one authority suggests it may refer to the apostle Peter, whose enthusiastic support of Jesus quickly diminished so that he denied knowing him three times during the night after Jesus's arrest. [Mid-1800s]

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Example Sentences

See Examples For:

peter out

While most experts are predicting this hantavirus outbreak will peter out, it’s not the kind of prediction you want to be wrong about either.

From Salon ● May 11, 2026

Economists predict the current wave of inflation is likely to peter out later in the year, but they are uncertain as to when and by how much.

From MarketWatch ● Apr. 15, 2026

The game at that stage looked like it was going to peter out to a 0-0 draw.

From BBC ● Mar. 28, 2026

It remains to be seen when the rally will peter out.

From Barron's ● Dec. 10, 2025

On the fifth block, I can tell that we’ve reached the point where the wave began to peter out.

From "Mockingjay" by Suzanne Collins

Related Words

• abate
• die out
• ebb
• evaporate
• fade
• recede
• tail away
• tail off
• wane