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Word of the Day
Wednesday, August 11, 2004

Definitions for arcanum

  1. A secret; a mystery.
  2. Specialized or mysterious knowledge, language, or information that is not accessible to the average person (generally used in the plural).

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Citations for arcanum
Through the years, Usenet evolved into an international forum on thousands of topics, called Usenet news groups, from the arcana of programming languages to European travel tips. Katie Hafner, New York Times
Here we must enter briefly into the technical arcana of employment law. Paul F. Campos, JurismaniaThe Madness of American Law
Origin of arcanum
Arcanum is from the Latin, from arcanus "closed, secret," from arca, "chest, box," from arcere, "to shut in."