arcane

Meanings

1. 1
   adj

   Mysterious and understood by only a few people.

   The manual was full of arcane rules that no one could follow.

2. 2
   adj

   Requiring secret or specialist knowledge to understand.

   He devoted years to the arcane study of ancient symbols.

Borrowed from Latin arcānus (“hidden, secret”), from arceō (“to shut up, enclose”); cognate with Latin arca (“a chest”).

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