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impetus

noun

im·​pe·​tus ˈim-pə-təs How to pronounce impetus (audio)
1
a(1)
: a driving force : impulse
(2)
: incentive, stimulus
b
: stimulation or encouragement resulting in increased activity
2
: the property possessed by a moving body in virtue of its mass and its motion
—used of bodies moving suddenly or violently to indicate the origin and intensity of the motion

Did you know?

Impetus Has Latin Roots

Impetus comes from the Latin verb impetere, meaning "to attack," which is a combination of the prefix in-, meaning "toward," with petere, meaning "to go to" or "to seek." Hence, impetus describes the kind of force that encourages an action ("The impetus behind the project") or the momentum of an action already begun ("The meetings only gave impetus to the rumors of a merger").

Synonyms

Example Sentences

In a revealing comment, Mr. Updike says an impetus for Rabbit, Run was the "threatening" success of Jack Kerouac's On the Road, the signature book of the 1950s Beat Generation, and its frenetic search for sensation. Dennis Farney, Wall Street Journal, 16 Sept. 1992 But 1939 gave new impetus to the Western with the Cecil B. de Mille railway epic Union Pacific, John Ford's skillful and dramatic Stagecoach,  … and George Marshall's classic comic Western, Destry Rides Again. Ira Konigsberg, The Complete Film Dictionary, 1987 … new techniques of navigation and shipbuilding enlarged trade and the geographical horizon; newly centralized power absorbed from the declining medieval communes was at the disposal of the monarchies and the growing nationalism of the past century gave it impetus … Barbara W. Tuchman, The March of Folly, 1984 His discoveries have given impetus to further research. the reward money should be sufficient impetus for someone to come forward with information about the robbery
Recent Examples on the Web Clark cited lessons learned from 2020, when minor league baseball was not played, as a major impetus for this decision. Stephen Whyno, Chicago Tribune, 7 Sep. 2022 Rights watchdogs have urged the U.N. to use the report as the impetus for creating a formal inquiry to investigate human-rights violations in Xinjiang and punish the perpetrators. Chun Han Wong, WSJ, 1 Sep. 2022 Workers at the Chipotle in Lansing cited wages and under-scheduling as the impetus for their campaign. Lauren Kaori Gurley, Washington Post, 25 Aug. 2022 Bennett cited the coalition's failure earlier this month to extend a law that grants West Bank settlers special legal status as a main impetus for new elections. Ilan Ben Zion, ajc, 21 June 2022 For those who have come to anticipate the clip before their films, news of its sequel was an impetus to return to the multiplex once more. WIRED, 4 Sep. 2022 Supporters of a push for legislative staff to unionize have cited The Chronicle’s reporting on the Workplace Conduct Unit as an impetus to organize staff. Sophia Bollag, San Francisco Chronicle, 19 Aug. 2022 Dragic, 36, said he was released to rejoin the Slovenian national team by the Bulls only after passing a comprehensive physical, with his brother, Zoran Dragic, also a former Heat guard, providing the impetus. Ira Winderman, Sun Sentinel, 13 Aug. 2022 For many, the destination race serves as an impetus to travel somewhere new and stick with a training regimen. Stacey Lastoe, Washington Post, 3 Aug. 2022 See More

Word History

Etymology

Latin, assault, impetus, from impetere to attack, from in- + petere to go to, seek — more at feather

First Known Use

1641, in the meaning defined at sense 1a(1)

Time Traveler
The first known use of impetus was in 1641

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