A.secret rites, secret worship, practised by the initiated, a post-Hom. word ; used of the worship of Demeter at Eleusis, h.Cer.273,476. Ar.Ra.386, Th.948 ; of the rites of the Cabeiri and Demeter Achaia, Hdt.2.51,5.61; of Orpheus, Id.2.81; of Eumolpus, App.Anth.1.318 ; of Cybele, E.Ba.78 (lyr.): most freq. of the rites of Dionysus, Hdt.2.81, E.Ba.34, al., Theoc.26.13.
II. generally, rites, sacrifices, SIG57.4 (Milet., v B. C.), A.Th.179 (lyr.), S.Tr.765, Ant.1013 ; “ὄργια Μουσῶν” Ar.Ra.356.
2. metaph., mysteries, without reference to religion, “ἐπιστήμης” Hp.Lex5 ; “τοῖς τῆς Ἀφροδίτης ὀ. εἰλημμένον” Ar.Lys.832, cf. Ach.Tat.4.1; “τὰ Ἐπικούρου θεόφαντα ὄ.” Metrod.38.—The sg. ὄργιον is rare, Jahresh.13Beibl.29 No.3 (Erythrae, iv B. C.), Luc.Syr.D.16, Orph.H.52.5. (Prob. cogn. with ἔρδω, ῥέζω, cf. ἔργον, ὀργεών.)