plagiarize

verb

pla·​gia·​rize ˈplā-jə-ˌrīz 

 also  -jē-ə-

plagiarized; plagiarizing

transitive verb

: to steal and pass off (the ideas or words of another) as one's own : use (another's production) without crediting the source

intransitive verb

: to commit literary theft : present as new and original an idea or product derived from an existing source

plagiarizer noun

Did you know?

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 plagiarize in a Sentence

He plagiarized a classmate's report.

She plagiarized from an article she read on the Internet.

Recent Examples on the Web

From its inception, Sun’s new blockchain was dogged by allegations that its white paper plagiarized the documentation of Ethereum and another blockchain. —Nina Bambysheva, Forbes.com, 27 Mar. 2025

The prepared text of McCarthy’s speech drew on those same themes, including lines plagiarized from then-Congressman (and Senate candidate) Richard Nixon. —Made By History, TIME, 9 Feb. 2025

Emerson comes off particularly badly, practically plagiarizing his aunt Mary’s writings, and being shown up by his wife’s far more progressive stance on slavery. —Francesca Wade, New York Times, 23 Jan. 2025

In fact, literary historians believe the canonical Dracula borrowed or plagiarized tropes from the novella as source material. —Sally Tamarkin, Them, 23 Dec. 2024

Word History

Etymology

plagiary

First Known Use

1660, in the meaning defined at transitive sense

Rhymes for plagiarize

• advertise
• aggrandize
• agonize
• alibis
• alkalies
• alkalis
• amortize
• amplifies
• analyse
• analyze
• anywise
• authorize

Kids Definition

plagiarize

verb

pla·​gia·​rize ˈplā-jə-ˌrīz 

plagiarized; plagiarizing

: to steal and pass off (as the ideas or words of another) as one's own

plagiarized a classmate's homework

plagiarizer noun

Legal Definition

plagiarize

verb

pla·​gia·​rize ˈplā-jə-ˌrīz 

plagiarized; plagiarizing

transitive verb

: to copy and pass off (the expression of ideas or words of another) as one's own : use (another's work) without crediting the source

the book contained plagiarized material

—Smith v. Little, Brown & Co., 265 F. Supp. 451 (1965)

intransitive verb

: to present as new and original an idea or work derived from an existing source

plagiarism

-ˌri-zəm 

noun

plagiarist

-rist 

noun

Etymology

from plagiary plagiarist, from Latin plagiarius, literally, kidnapper, from plagium netting of game, kidnapping, from plaga net