self-plagiarism

[ self--pley-juh-riz-uhm, ‐jee-uh-riz‐ ]
/ ˈsɛlf ˈpleɪ dʒəˌrɪz əm, ‐dʒi əˌrɪz‐ /
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noun

an act or instance of reusing ideas, passages, etc., from one’s previous work in another work and not referencing the original content; plagiarism of oneself: This article examines the legal and ethical aspects of self-plagiarism and fair use.

Origin of self-plagiarism

First recorded in 1875–80; self- + plagiarism
Related formsself-pla·gia·rize, verb (used without object), ‐ized, ‐iz·ing.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for self-plagiarism