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Known or understood by only a few: arcane economic theories. See Synonyms at mysterious.
[Latin arcānus, secret, from arca, chest.]
requiring secret knowledge to be understood; mysterious; esoteric
[C16: from Latin arcānus secret, hidden, from arcēre to shut up, keep safe]
known or understood by those with special knowledge; secret: arcane rituals.
[1540–50; (< Middle French) < Latin arcānus=arc(a) chest, box + -ānus -an1]
arcane- Meaning "hidden, secret; mysterious, abstruse," it is from Latin arcere, "shut up," from arca, "chest."
See also related terms for mysterious.
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|Adj.||1.||arcane - requiring secret or mysterious knowledge; "the arcane science of dowsing"|
esoteric - confined to and understandable by only an enlightened inner circle; "a compilation of esoteric philosophical theories"