Plagiarism

Definition of Plagiarize by Merriam-Webster
https://www.merriam-webster.com/dictionary/plagiarize

plagiarize

verb

pla·​gia·​rize | \ ˈplā-jə-ˌrīz also -jē-ə- \

plagiarized; plagiarizing

Definition of plagiarize

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