plagiarism

noun

pla·​gia·​rism ˈplā-jə-ˌri-zəm How to pronounce plagiarism (audio)
 also  -jē-ə-
1
: an act or instance of plagiarizing
2
: something plagiarized
plagiarist
ˈplā-jə-rist How to pronounce plagiarism (audio)
 also  -jē-ə
noun
plagiaristic
ˌplā-jə-ˈri-stik How to pronounce plagiarism (audio)
 also  -jē-ə-
adjective

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Common Misspellings

plagarism, plagerism, plagirism

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The Kidnapping Roots of Plagiarize

If schools wish to impress upon their students how serious an offense plagiarism is, they might start with an explanation of the word’s history. Plagiarize (and plagiarism) comes from the Latin plagiarius “kidnapper.” This word, derived from the Latin plaga (“a net used by hunters to catch game”), extended its meaning in Latin to include a person who stole the words, rather than the children, of another. When plagiarius first entered English in the form plagiary, it kept its original reference to kidnapping, a sense that is now quite obsolete.

Examples of plagiarism in a Sentence

The student has been accused of plagiarism.
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 December, the press began publishing allegations of plagiarism in Gay’s scholarly work, in the field of political behavior. Nathan Heller, The New Yorker, 3 Mar. 2025 Her first book, Smart on Crime, drew plagiarism accusations from conservatives in the closing months of the campaign. Ross O'Keefe, Washington Examiner - Political News and Conservative Analysis About Congress, the President, and the Federal Government, 15 Jan. 2025 Read: Novels about plagiarism are having a moment. Plan: Spend 36 hours in Antwerp, Belgium. Play the Spelling Bee. Natasha Frost, New York Times, 7 Jan. 2025 Harvard fell from No. 1 after a prolonged period of controversy, marked by antisemitism on campus and the resignation of Harvard President Claudine Gay amid allegations of plagiarism. Jessica Dickler, CNBC, 4 Mar. 2025 See All Example Sentences for plagiarism

Word History

First Known Use

1621, in the meaning defined at sense 1

Time Traveler
The first known use of plagiarism was in 1621

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Cite this Entry

“Plagiarism.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/plagiarism. Accessed 24 Mar. 2025.

Kids Definition

plagiarism

noun
pla·​gia·​rism ˈplā-jə-ˌriz-əm How to pronounce plagiarism (audio)
1
: an act of plagiarizing
2
: something plagiarized
plagiarist noun
plagiaristic adjective

More from Merriam-Webster on plagiarism

Last Updated: - Updated example sentences
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