Etymology

illegal

il·le·gal
I1L1L1E1G2A1L1

Today it means: Contrary to, forbidden, or not authorized by law, especially criminal law. Full definition →

French illégal ← Medieval Latin illegalis ← Latin legalis
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The story

  1. Latin · derived fromlegalis
  2. Medieval Latin · derived fromillegalis
  3. French · borrowed fromillégal
  4. English todayillegal

Borrowed from French illégal, from Medieval Latin illegalis, from Latin legalis, by surface analysis, il- + legal. In senses relating to immigration, via clipping of illegal alien or illegal immigrant.

Words from the same roots

Latinlegalis all →

loyalleal

Etymology from Wiktionary, CC BY-SA 4.0.