plagiarism (English)

Where does "plagiarism" come from?

The English noun 'plagiarism' is formed from the combination of 'plagiary' and the suffix '-ism'[1][2]. The older term 'plagiary' derives from the Latin 'plagiārius', meaning 'kidnapper' or 'plagiarist', which comes from 'plagium' meaning 'kidnapping'[3]. This Latin root likely connects to 'plaga', meaning 'a net, snare, or trap', ultimately tracing back to the Proto-Indo-European root '*pleḱ-' meaning 'to weave'[3][5].

Open questions

• The connection between the Latin word for kidnapping and the root meaning hunting net or weaving is considered probable rather than certain. [3] [5]

Full etymology tree

• plagiarism (English), 'Copying of another person's ideas, text, or other creative work, and presenting it as one's own, especially without permission; plagiarizing.'
  • derived plagiary (English), 'The crime of literary theft; plagiarism.'
    • derived plagiarius (Latin), 'torturer, oppressor, plunderer'
      • derived plagium (Latin), 'manstealing, kidnapping, the selling of freemen as slaves'
        • derived plaga (Latin), 'a hunting net, web, used to set traps, snares'
          • derived *pleḱ- (Proto-Indo-European), 'to fold, plait, weave'
      • suffix -arius (Latin), 'Used to form adjectives from nouns or numerals.'
  • suffix -ism (English), 'Used to form nouns of action, process, or result based on the accompanying verb ending in -ise or -ize.'

Ancestors

• plagiary (English)
• ism (English)

Descendants and derived words

• AIgiarism (English)
• antiplagiarism (English)
• autoplagiarism (English)
• cyberplagiarism (English)
• mosaic plagiarism (English)
• patchwork plagiarism (English)
• plagiarhythm (English)
• self-plagiarism (English)

Sources

1. plagiarism (English) - Wiktionary
2. ism (English) - Wiktionary
3. plagiary (English) - Wiktionary
4. plagiarius (Latin) - Wiktionary
5. plagium (Latin) - Wiktionary

Updated September 2026

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Etymology data from Wiktionary, CC BY-SA 4.0 · About Miraris