Etymologically

Etymology and origin of the Ancient Greek word κοιμάω

Confidence
Probable
Formation
Derivation
First attested
Homer, Iliad
From
Proto-Indo-European *ḱey-
Ultimate origin
Proto-Indo-European *ḱey-

Pronunciation

  • 5th-century BC Attic: /koi̯.má.ɔː/[1]
  • 4th-century AD Koine: /cyˈma.o/[1]
  • 10th-century Byzantine: /cyˈma.o/[1]

Forms

κοιμᾰ́ω (koimáō) [1]

Etymology

It is a denominative verb from an unattested noun *κοίμη (*koímē) or *κοῖμος (*koîmos),[2][1] from the root of κεῖμαι (keîmai, “to lie”), from Proto-Indo-European *ḱey- (“to lie, rest”).[2][3][1] The o-grade noun with an m-suffix is also found in Gothic 𐌷𐌰𐌹𐌼𐍃 (haims, “village”), Lithuanian šeimýna (“family”) and Latvian saime (“family”).[2] Van Beek notes that a base *ḱoymeh₂ would be strikingly similar in formation to εὐνή (eunḗ) “bed”.[1]

Earliest recorded meaning

In the Iliad the middle is used of men lying down to sleep, and the active of Sleep closing a person's eyes; the Odyssey has it of putting a guest to bed and of a hind bedding her fawns.[4][3]

Semantic evolution

The active meant to lull or put to bed, and figuratively to calm winds and waves or soothe pain, in Homer and Aeschylus; the middle and passive meant to lie down to sleep.[4][3] Sleep was already an image of death in the Iliad, and Sophocles and funerary epigrams use the verb of the dead.[3][5] It was also used of sleeping with someone, from Hesiod and Pindar on.[3]

In the New Testament the passive means both to sleep and to have died.[5] Its derivatives κοίμησις (koímēsis) “sleep, death” and κοιμητήριον (koimētḗrion), first a bedroom, then a resting place or burial ground, belong to this use; κοιμητήριον is continued in Modern Greek κοιμητήριο (koimitírio), a church word for a cemetery.[2][6] The verb itself survives through Medieval Greek as Modern Greek κοιμάμαι (koimámai) “to sleep”.[6]

Timeline

  • Homer – The Iliad uses it of lying down to sleep, of lulling, and of the sleep of death.[4][3][5]
  • Before the 6th century BC – Hesiod uses it of sleeping with someone.[3][7]
  • 6th–5th century BC – Aeschylus uses it of calming a flame or silencing a voice.[4][3][7]
  • 1st century AD – In the New Testament it means to sleep and to die.[5]
  • Modern Greek – It survives as κοιμάμαι “to sleep”, and its derivative as κοιμητήριο “cemetery”.[6]

Meanings

Verb

  1. To lull, put to sleep; to put to bed, settle for the night.[4][3]
  2. (euphemism) Of death, to put to sleep.[3]
  3. To calm, still winds or waves; to soothe pain; to silence a voice.[4][3]
  4. (middle and passive) To go to bed, fall asleep, sleep.[4][3][5]
  5. (middle and passive, euphemism) To sleep the sleep of death, to die.[3][5]
  6. (middle and passive) To sleep with someone; of animals, to mate.[3]
  7. (middle and passive) Of a watchman, to spend the night at his post.[3]

Word family

  • ἀποκοιμάομαι (apokoimáomai)
  • ἐγκατακοιμάομαι (enkatakoimáomai)
  • ἐκκοιμάομαι (ekkoimáomai)
  • ἐπικατακοιμάομαι (epikatakoimáomai)
  • ἐπικοιμάομαι (epikoimáomai)
  • κατακοιμάω (katakoimáō)
  • συγκοιμάομαι (sunkoimáomai)
  • περικοιμάομαι (perikoimáomai)
  • προκοιμάομαι (prokoimáomai)
  • κοίμησις (koímēsis)
  • κοιμητήριον (koimētḗrion)
  • κοιμίζω (koimízō)
  • κεῖμαι (keîmai)
  • κοίτη (koítē)

References

  1. ^ a b c d e f g Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d 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
  3. ^ a b c d e f g h i j k l m n o Diggle, James, et al., eds. (2021), The Cambridge Greek Lexicon, Cambridge: Cambridge University Press
  4. ^ a b c d e f g Liddell, Henry George; Scott, Robert; Jones, Henry Stuart (1940), A Greek-English Lexicon, 9th ed., Oxford: Clarendon Press
  5. ^ a b c d e f 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
  6. ^ a b c Ινστιτούτο Νεοελληνικών Σπουδών (Ίδρυμα Μανόλη Τριανταφυλλίδη) (1998), Λεξικό της κοινής νεοελληνικής, Thessaloniki: Aristotle University of Thessaloniki
  7. ^ a b Rodríguez Adrados, Francisco, et al., eds. (1980–), Diccionario Griego-Español, Madrid: CSIC, http://dge.cchs.csic.es/xdge

Related etymologies

Cite this entry

“Κοιμάω.” Etymologically, 25 Oct. 2026, etymologically.com/grc/%CE%BA%CE%BF%CE%B9%CE%BC%CE%AC%CF%89. Accessed 25 Oct. 2026.

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