I.of or belonging to secret rites or mysteries, mystic, mystical (poet.): “mystica sacra Dindymenes,” Mart. 8, 81, 1: “vannus Iacchi,” Verg. G. 1, 166: “vitis,” Tib. 3, 6, 1: “lampas,” Stat. Th. 8, 765.—In plur. subst.: mystĭ-ca , ōrum, n., things pertaining to secret rites, Lampr. Alex. Sev. 26; Inscr. Orell. 2353.—Hence, adv.: mystĭcē , mystically (post-class.), Sol. 32; Ambros. in Luc. 7, § 9.
mystĭcus , a, um, adj., = μυστικός,