arcānus adj. arca, secret, trusty, silent: nox, O.
—Hidden, close, secret, private, concealed: consilia, H.: Littera, O.: sensūs, V.: sacra, mysteries, H.
—Poet., of Ceres, H.
— As subst n., a secret, mystery: nox arcanis fidissima, O.: arcani Fides prodiga, H.: si quid arcani fuerit, L.: prodere, Iu.: fatorum arcana, V.: Iovis, secret decrees, H.