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See more synonyms for illegality on Thesaurus.com
noun, plural il·le·gal·i·ties.
  1. illegal condition or quality; unlawfulness.
  2. an illegal act.
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Origin of illegality

From the Medieval Latin word illēgālitās, dating back to 1630–40. See illegal, -ity
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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Word Origin and History for illegality


1630s, from illegal + -ity; or else from French illegalité (14c.).

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Online Etymology Dictionary, © 2010 Douglas Harper