Etymologically

ἐνύπνιον

Etymology and origin of the Ancient Greek word ἐνύπνιον

Confidence
Established
Formation
Derivation
First attested
700s BC Homer, Iliad More words from the 8th century BC
Ultimate origin
Ancient Greek ὕπνος

Pronunciation

  • 5th-century BC Attic: /e.ný.pni.on/[1]
  • 4th-century AD Koine: /eˈny.pni.on/[1]
  • 10th-century Byzantine: /eˈny.pni.on/[1]

Forms

ἐνῠ́πνῐον (enúpnion) n (genitive ἐνῠπνῐ́ου); second declension[1]

Etymology

It is from Ancient Greek ἐνύπνιος (enúpnios, “seen in sleep”), the neuter of the adjective used as a noun.[1][2] Beekes explains the adjective as a hypostasis of the phrase “in sleep”, ἐν (en, “in”) with the dative of ὕπνος (húpnos, “sleep”).[3]

The noun goes back to Proto-Indo-European *sup-no-, from the verbal root Proto-Indo-European *swep- (“to fall asleep”).[3][4] Related nouns with other ablaut grades are Latin somnus, Lithuanian sãpnas, Old Irish súan, Old Norse svefn and Albanian gjumë.[3]

Earliest recorded meaning

In Homer the neuter is used as an adverb, “in sleep”: in the Iliad and the Odyssey a speaker tells how a divine dream came to him as he slept.[2][5] As a noun meaning “dream” it appears after Homer, first in Pindar, who tells of a dream that had to be obeyed.[6][2][5]

Semantic evolution

From the 5th century BC on, it is a common word for a dream, often one that carries a warning and needs an interpreter: Aeschylus speaks of a judge of dreams, and Herodotus of advice given about a dream.[5][2] Herodotus also has dreams that only wander among men and mean nothing, and the comic poets use the adverb for something unreal: in Aristophanes a character asks whether a feast is only a dream, and in Menander “not even in a dream” means “never”.[5][2] Hippocratic medicine studied dreams as signs, and inscriptions from Epidaurus record dreams seen by the sick who slept in the sanctuary to be healed.[5]

The Septuagint uses it for Joseph's dreams in Genesis, and the New Testament for dreams as a means of divine communication, in a quotation from Joel in Acts.[5][7][8][9] Artemidorus, the 2nd-century AD interpreter of dreams, kept ἐνύπνιον for an ordinary dream and ὄνειρος (óneiros) for a prophetic one, but other writers do not keep this distinction.[2]

Medieval vernacular Greek kept the ancient noun.[10] Modern Greek has ενύπνιο (enýpnio) “dream”, from the ancient word.[11]

Timeline

  • Homer – The Iliad and the Odyssey use the neuter as an adverb, “in sleep”.[2][5]
  • 6th–5th century BC – Pindar uses it as a noun for a dream that must be obeyed.[6][2]
  • 6th–5th century BC – Aeschylus speaks of the vision of dreams and of their interpreter.[2][5]
  • 5th century BC – Herodotus writes of advice about a dream and of dreams that mean nothing.[2][5]
  • 5th century BC – The Hippocratic writers treat dreams as signs and describe frightening dreams.[5]
  • 4th century BC – An inscription from Epidaurus records a dream seen by a sick person sleeping in the sanctuary.[5]
  • 2nd century AD – Artemidorus distinguishes ἐνύπνιον, an ordinary dream, from ὄνειρος (óneiros), a prophetic one.[2]
  • 1100–1669 – Vernacular Greek keeps the ancient noun.[10]
  • Modern Greek – The word survives as ενύπνιο (enýpnio) “dream”.[11]

Meanings

Noun

  1. A dream, a vision seen in sleep, often one to be interpreted; in the Septuagint and the New Testament also a dream sent by God.[2][12][5][8]
  2. (adverbial accusative) In sleep, in a dream; with a negative, “not even in a dream”, never.[2][5][13]

Word family

  • ἐνυπνιάζω (enúpniázō)
  • ἐνυπνιαστής (enupniastḗs)
  • ἐνύπνιος (enúpnios)
  • ὕπνος (húpnos)
  • ὄνειρος (óneiros)
  • Latin somnus

Usage notes

Ancient lexica gloss it with ὄναρ (ónar) “dream”, and its opposite is ὕπαρ (húpar), a waking vision.[14][15] The Etymologicum Magnum treats the Homeric use as an adverb made from the noun, meaning “in sleep”.[16]

References

  1. ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j k l m Liddell, Henry George; Scott, Robert; Jones, Henry Stuart (1940), A Greek-English Lexicon, 9th ed., Oxford: Clarendon Press
  3. ^ a b c Beekes, Robert S. P. (2010), Etymological Dictionary of Greek, with the assistance of Lucien van Beek, Leiden Indo-European Etymological Dictionary Series 10, Leiden; Boston: Brill
  4. ^ Wodtko, Dagmar S.; Irslinger, Britta; Schneider, Carolin (2008), Nomina im indogermanischen Lexikon, Heidelberg: Winter
  5. ^ a b c d e f g h i j k l m Rodríguez Adrados, Francisco, et al., eds. (1980–), Diccionario Griego-Español, Madrid: CSIC, http://dge.cchs.csic.es/xdge
  6. ^ a b Slater, William J. (1969), Lexicon to Pindar, Berlin: De Gruyter
  7. ^ Lust, Johan; Eynikel, Erik; Hauspie, Katrin (2003), Greek-English Lexicon of the Septuagint, rev. ed., Stuttgart: Deutsche Bibelgesellschaft
  8. ^ a b Bauer, Walter; Danker, Frederick W., et al. (2000), A Greek-English Lexicon of the New Testament and Other Early Christian Literature, 3rd ed., Chicago: University of Chicago Press
  9. ^ United Bible Societies (2023), UBS Dictionary of the Greek New Testament (revised Louw–Nida semantic domains), open-licence ed.
  10. ^ a b Kriaras, Emmanuel, Επιτομή του Λεξικού της μεσαιωνικής ελληνικής δημώδους γραμματείας 1100–1669, Κέντρο Ελληνικής Γλώσσας, https://www.greek-language.gr
  11. ^ a b Babiniotis, Georgios (2010), Ετυμολογικό λεξικό της νέας ελληνικής γλώσσας [Etymological Dictionary of Modern Greek], Athens: Κέντρο Λεξικολογίας
  12. ^ Diggle, James, et al., eds. (2021), The Cambridge Greek Lexicon, Cambridge: Cambridge University Press
  13. ^ Korinthios, J. (2025), Grande Dizionario Greco Classico: Greco–Italiano, digital ed., Milan: Hoepli
  14. ^ Hesychius of Alexandria, Lexicon, ed. Kurt Latte (Α–Ο, Copenhagen 1953–1966) and Moritz Schmidt (Π–Ω, Jena 1858–1868)
  15. ^ Charbonnet, André (2025), Chæréphon, v4.7: supplement to Bailly from papyri, inscriptions and recent lexica
  16. ^ Gaisford, Thomas, ed. (1848), Etymologicum Magnum, Oxford: Oxford University Press
Cite this entry

“Ἐνύπνιον.” Etymologically, 8 Nov. 2026, etymologically.com/grc/%E1%BC%90%CE%BD%CF%8D%CF%80%CE%BD%CE%B9%CE%BF%CE%BD. Accessed 8 Nov. 2026.

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