ἄρρητος, ον,
also η, ον [[ 5th c.BC: Euripides Tragicus “Hecuba” 201] Refs 5th c.BC+]:— unspoken, ἔπος προέηκεν ὅ πέρ τ᾽ ἄρρητον ἄμεινον[[ 8th c.BC: Odyssea Homerus Epicus “Odyssey” 14.466; ἄνδρες.. ῥητοί τ᾽ ἄ. τε 8th-7th c.BC: Hesiodus Epicus “Opera et Dies” 4; ἔστω ἄ. τὰ εἰρημένα 5th-6th c.BC: Plato Philosophus “Symposium” 189b, etc., compare 4th c.BC: Aeschines Orator 3.217] Refs 8th c.BC+]; οὐκ ἐπ᾽ ἀρρήτοις γε τοῖς ἐμοῖς λόγοις not without warning spoken by me, [[ 5th c.BC: Sophocles Tragicus “Antigone” 556; ἄ. κἀτελῆ φυλάξομαι [prev. author] “El.” 1012] Refs 5th c.BC+]. adverb -τως, σιγᾶν[[ 4th c.BC: Aristoteles Philosophus “Fragmenta” 44 codices (ἀρρήκτως Reiske, ἀρράτως Bernays). ] Refs 4th c.BC+]
__II that cannot be spoken or expressed, ἀδιανόητον καὶ ἄ. καὶ ἄφθεγκτον καὶ ἄλογον[[ 5th-6th c.BC: Plato Philosophus “Sophista” 238c] Refs 5th c.BC+]: hence, unspeakable, immense, [[ 2nd c.AD: Appianus Historicus “Bella Civilia” 3.4; ἐπιθυμία 1st c.BC: Philodemus Gadarensis Epigrammaticus “Ir.” p.50 W.; εὐχαριστία [prev. author] “Lib.” p.51 O. ] Refs 1st c.BC+]
__III not to be spoken: hence,
__III.1 not to be divulged, ἱροργίαι, ἱρά, [[ 5th c.BC: Herodotus Historicus 5.83, 6.135; σέβας ἀρρήτων ἱερῶν 5th-6th c.BC: Aristophanes Comicus “Nubes” 302; ἄ. σφάγια 5th c.BC: Euripides Tragicus “Iphigenia Taurica” 41; ἄ. ἀβακχεύτοισιν εἰδέναι [prev. author] “Ba.” 472] Refs 5th c.BC+]; διδακτά τε ἄρρητά τ᾽, i.e.things profane and sacred, [[ 5th c.BC: Sophocles Tragicus “Oedipus Tyrannus” 301] Refs 5th c.BC+]; ἄ. κόρη the maid whom none may name (i.e. Persephone), [[ 5th c.BC: Euripides Tragicus “Fragmenta” 63, compare “Hel.” 1307] Refs 5th c.BC+]; ἀρρήτων θέσμια, i.e. of Demeter and Persephone, [[ “IG” 3.713.6. ] Refs]