Ἴακχος

English (LSJ)

ὁ, Iacchus, Iacchos, Iakchos, mystic name of Dionysus, S.Fr.959, Trag.Adesp.140 (lyr.), Ar.Ra.398, Paus.1.2.4, etc.; ἡ Ἐλευσῖνι τοῦ Ἰαάκχου (sic)
A ὑποδοχή IG22.847.21; τὸν Ἴακχον ἐξελαύνειν lead forth a Bacchic procession, Plu.Alc.34; τὸν Ἴακχον προπέμψαι IG22.1028.10.
2 song in his honour, ὁ μυστικὸς ἴακχος Hdt.8.65, cf. Athenio ap.Posidon.36 J., Anon. ap. Suid.; ᾄδειν τὸν Ἴακχον Hsch. s.v. Διαγόρας: as adjective, ἴακχος ᾠδά E.Cyc.69 (lyr.).
2 in plural, Epigr.Gr.985 (Philae): generally, chorus, νεκρῶν ἴακχος E.Tr.1230; τυμπάνων ἴακχος dub. in Id.Fr.586.4L (lyr.).
II used by the tyrant Dionysius for χοῖρος, Athanis 1 (= Dionys.Trag.12).

French (Bailly abrégé)

1ου (ὁ) :
Iakkhos, n. mystique de Bacchus, AR. Ran. 398 ; PLUT. Alc. 34.
Étymologie: ἰακχή.
2ος, ον :
qui concerne Iakkhos, bachique, EUR. Cycl. 69.
Étymologie: Ἴακχος.

Russian (Dvoretsky)

Ἴακχος:
I (ῐα) ὁ Иакх (культово-мистическое имя Вакха): τὸν Ἴακχον ἐξελαύνειν Plut. нести в торжественном шествии изображение Иакха.
иакхический, вакхический (ᾠδή Eur.).

Greek (Liddell-Scott)

Ἴακχος: ὁ, (ἴδε ἐν λέξ. Βάκχος) μυστικὸν ὄνομα τοῦ Βάκχου, Ἀριστοφ. Βάτρ. 398 κἑξ., Valck. Εἰς Ἡρόδ. 8. 65· τὸν Ἴακχον ἐξελαύνειν, ὁδηγεῖν Βακχικὴν πομπήν, Πλουτ. Ἀλκ. 34. 2) ὁ πρὸς τιμὴν αὐτοῦ ὕμνος (οἷος ὁ παρ’ Ἀριστοφ. ἔνθ’ ἀνωτ.), Ἡρόδ. 8. 65, Ἀθηνίων παρ’ Ἀθην. 212D, Ἀνώνυμ. Παρὰ Σουΐδ., Συλλ. Ἐπιγρ. (προσθῆκαι) 493b: ― ἐν Εὐρ. Κύκλ. 69, ἔνθα ἡ λέξις ἀπαντᾷ ὡς ἐπίθετον, Ἴακχον ᾠδή, ἡ Δευτέρα λέξις πιθανῶς εἶναι γλῶσσα πρὸς ἑρμηνείαν τοῦ Ἴακχος. ΙΙ. κατὰ τὸν κατασκευαστὴν νέων λέξεων Διονύσιον τὸν Τύραννον, ὅστις τὸν στῦλον ἐκάλει μενεκράτην, ὅτι μένει καὶ κρατεῖ, καὶ τὸ ἀκόντιον βαλλάντιον, διότι ἐναντίον βάλλεται, ὁ χοῖρος = ἴακχος Ἀθήν. 98D.

Greek Monotonic

Ἴακχος: ὁ (ἰαχέω)·
1. Ίακχος, αποκρυφιστικό όνομα του Βάκχου, σε Αριστοφ. κ.λπ.
2. πανηγυρικός ύμνος προς τιμήν του Βάκχου, σε Ηρόδ. κ.λπ.

Frisk Etymological English

Grammatical information: m.
Meaning: surname of Dionysos, arisen from the cry (Ἴακχε), with which the community greeted the god on the Lenaia, also name of the festive song (Hdt., S., Ar.); by the tyrant Dionysios used as χοῖρος (because of the ἰαχεῖν of big; Wackernagel KZ 33, 48 = Kl. Schr. 1, 727); after that as name of the pudendum muliebre (s. H. Diels bei Kretschmer Glotta 1, 385).
Derivatives: Ίακχαῖος Iakchian, Bakchic, Dionysiac (hell.), Ίακχεῖον Iakchos-temple (Athen; Plu.), ἰακχάζω call Ἴακχε (Hdt.; coni. in Longos 3, 11 for ἰακχεύσαντες).
Origin: LW [a loanword which is (probably) not of Pre-Greek origin] Anat.
Etymology: From ἰαχή, ἰάχω (s. v.) with expressive gemination, first in theVoc. Ἴακχε. - See Nilsson Gr. Rel. 599f., 664; also v. Wilamowitz Glaube 2, 161, Versnel, Triumphus 27-33, 37. Or a loan together with the institution, prob. from Anatolia.

Middle Liddell

Ἴακχος, ὁ, ἰαχέω
1. Iacchus, mystic name of Bacchus, Ar., etc.
2. a festal song in his honour, Hdt., etc.

Frisk Etymology German

Ἴακχος: {Íakkhos}
Grammar: m.
Meaning: Beiname des Dionysos, aus dem Ruf (Ἴακχε) entstanden, mit dem die Gemeinde an den Lenäen den Gott begrüßte, auch N. des Festgesangs selbst (Hdt., S., Ar. u. a.); vom Tyrannen Dionysios im Sinn von χοῖρος gebraucht (wegen des ἰαχεῖν der Ferkel; Wackernagel KZ 33, 48 = Kl. Schr. 1, 727); danach als Ben. des pudendum muliebre (s. H. Diels bei Kretschmer Glotta 1, 385).
Derivative: Davon Ἰακχαῖος iakchisch, bakchisch, dionysisch (hell.), Ἰακχεῖον ‘Iakchos-Tempel' (Athen; Plu. u. a.), ἰακχάζω Ἴακχε rufen (Hdt.; coni. in Longos 3, 11 für ἰακχεύσαντες).
Etymology : Aus ἰαχή, ἰάχω (s. d.) mit expressiver Gemination, zunächst im Vok. Ἴακχε, entstanden. — Näheres über Ἴακχος bei Nilsson Gr. Rel. 599f., 664; auch v. Wilamowitz Glaube 2, 161.
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Wikipedia EN

In ancient Greek religion and mythology, Iacchus (also Iacchos, Iakchos) (Greek: Ἴακχος) was a minor deity, of some cultic importance, particularly at Athens and Eleusis in connection with the Eleusinian mysteries, but without any significant mythology. He perhaps originated as the personification of the ritual exclamation Iacche! cried out during the Eleusinian procession from Athens to Eleusis. He was often identified with Dionysus, perhaps because of the resemblance of the names Iacchus and Bacchus, another name for Dionysus. By various accounts he was a son of Demeter (or apparently her husband), or a son of Persephone, identical with Dionysus Zagreus, or a son of Dionysus.

During the Greco-Persian Wars, when the Attic countryside, deserted by the Greeks, was being laid waste by the Persians, a ghostly procession was supposed to have been seen advancing from Eleusis, crying out “Iacchus”. This miraculous event was interpreted as a sign of the eventual Greek victory at the Battle of Salamis (480 BC). Iacchus was also possibly involved in an Eleusinian myth in which the old woman Baubo, by exposing her genitals, cheered up the mourning Demeter.

Translations

bg: Иакхос; ca: Iacus; de: Iakchos; el: Ίακχος; en: Iacchus; es: Yaco; fa: یاکخوس; fi: Iakkhos; fr: Iacchos; hu: Iakkhosz; it: Iacco; no: Iakkhos; pl: Iakchos; pt: Iaco; ru: Иакх; sh: Jakho; sr: Јакхо; sv: Iakkhos; tr: İakkhos; uk: Іакх; zh: 伊阿科斯;