perspire

verb

per·​spire pər-ˈspī(-ə)r How to pronounce perspire (audio)
perspired; perspiring

intransitive verb

: to emit matter through the skin
specifically : to secrete and emit perspiration

Examples of perspire in a Sentence

I was nervous and could feel myself start to perspire. She ran two miles and wasn't even perspiring.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
In fact, a passenger who is visibly perspiring might trigger the need for a wand screening or extra pat down, according to a report from CNN. Katie Nadworny, Travel + Leisure, 27 July 2025 But despite the importance of human sweating, there’s still a lot to learn about how humans perspire. Sam Walters, Discover Magazine, 25 July 2025 The process is similar to how humans perspire and occurs as temperatures climb, according to the Scientific American. Katie Wiseman, Louisville Courier Journal, 22 July 2025 By late July, the Midwest's most abundant crop is prospering and perspiring enough to cause a slight bump in humidity levels. Ryan Murphy, IndyStar, 21 July 2025 See All Example Sentences for perspire

Word History

Etymology

French perspirer, from Middle French, from Latin per- through + spirare to blow, breathe — more at per-

First Known Use

circa 1682, in the meaning defined above

Time Traveler
The first known use of perspire was circa 1682

Browse Nearby Words

Cite this Entry

“Perspire.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/perspire. Accessed 7 Aug. 2025.

Kids Definition

perspire

verb
per·​spire pər-ˈspī(ə)r How to pronounce perspire (audio)
perspired; perspiring
: to give off perspiration : sweat

Medical Definition

perspire

intransitive verb
per·​spire pər-ˈspī(ə)r How to pronounce perspire (audio)
perspired; perspiring
: to emit matter through the skin
specifically : to secrete and emit perspiration

More from Merriam-Webster on perspire

Last Updated: - Updated example sentences
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