Etymologically

Etymology and origin of the Ancient Greek word ὑπνόω

Confidence
Established
Formation
Derivation
First attested
400s BC Herodotus More words from the 5th century BC
Ultimate origin
Proto-Indo-European *swep-
Etymology tree
inherited borrowed derived
Ancient Greek ὕπνος (húpnos)
Ancient Greek ὑπνόω (hupnóō)

Pronunciation

  • 5th-century BC Attic: /hy.pnó.ɔː/[1]
  • 4th-century AD Koine: /yˈpno.o/[1]
  • 10th-century Byzantine: /yˈpno.o/[1]

Forms

ὑπνόω (hupnóō) [1]

Etymology

It is a denominative verb from Ancient Greek ὕπνος (húpnos, “sleep”) with the suffix -όω (-óō).[1][2][3] The noun goes back to Indo-European Proto-Indo-European *swep- (“to sleep”), as the zero-grade noun *sup-no-.[4][5] Cognate with Albanian gjumë and Old Church Slavonic сънъ (sŭnŭ), from the same formation, and with Sanskrit स्वप्न (svápna) and Latin somnus.[4]

Earliest recorded meaning

Herodotus uses the passive perfect participle ὑπνωμένος, “asleep”.[6][7]

Semantic evolution

In Classical Greek the verb is rare: besides Herodotus, Aristophanes has a Laconian form of the infinitive, and the Hippocratic Epidemics uses the active for sleeping.[6][7] It became common in Hellenistic prose (Polybius, Plutarch).[7][8] The Septuagint uses it for sleep, for causing to sleep (Genesis 2:21), and euphemistically for dying.[9][6] The transitive sense “to put to sleep” is found in Dioscorides.[6][10]

Its derivative ὑπνωτικός (hupnōtikós) “putting to sleep” passed through Late Latin and French into English hypnotic.[11]

Timeline

  • 5th century BC – Herodotus uses the passive perfect participle for someone fast asleep.[6][7][12]
  • 5th–4th century BC – Aristophanes uses a Laconian form of the infinitive.[6][7][12]
  • 2nd century BC – Polybius uses the active for falling asleep.[6][7][12]
  • 3rd–1st century BC – The Septuagint uses it for sleeping, for putting to sleep and for dying.[9]
  • 1st–2nd century AD – Plutarch uses it of falling asleep.[6][7][12]

Meanings

Verb

  1. (intransitive, and passive) To sleep, fall asleep.[6][7][3]
  2. (transitive) To put to sleep.[6][10]
  3. (Septuagint) To die (euphemism).[6][9]

Word family

  • ὑπνωτικός (hupnōtikós)

References

  1. ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ Liddell, Henry George; Scott, Robert (1889), An Intermediate Greek-English Lexicon, Oxford: Clarendon Press
  3. ^ 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
  4. ^ a b 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
  5. ^ Indo-European Lexicon (after Pokorny), Linguistics Research Center, University of Texas at Austin, https://lrc.la.utexas.edu/lex
  6. ^ a b c d e f g h i j k Liddell, Henry George; Scott, Robert; Jones, Henry Stuart (1940), A Greek-English Lexicon, 9th ed., Oxford: Clarendon Press
  7. ^ a b c d e f g h Diggle, James, et al., eds. (2021), The Cambridge Greek Lexicon, Cambridge: Cambridge University Press
  8. ^ Keersmaekers, Alek (2021–2025), GLAUx: The Greek Language Automated corpus, https://github.com/alekkeersmaekers/glaux
  9. ^ a b c Lust, Johan; Eynikel, Erik; Hauspie, Katrin (2003), Greek-English Lexicon of the Septuagint, rev. ed., Stuttgart: Deutsche Bibelgesellschaft
  10. ^ a b Bailly, Anatole (2020), Dictionnaire grec-français, Bailly 2020 Hugo Chávez ed., ed. Gérard Gréco et al.
  11. ^ Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  12. ^ a b c d Rodríguez Adrados, Francisco, et al., eds. (1980–), Diccionario Griego-Español, Madrid: CSIC, http://dge.cchs.csic.es/xdge
Cite this entry

“Ὑπνόω.” Etymologically, 13 Nov. 2026, etymologically.com/grc/%E1%BD%91%CF%80%CE%BD%CF%8C%CF%89. Accessed 14 Nov. 2026.

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