Etymologically

Etymology and origin of the Ancient Greek word κλαίω

Confidence
Uncertain
First attested
700s BC Homer, Iliad
From
Pre-Greek

Pronunciation

  • 5th-century BC Attic: /klǎi̯.ɔː/[1]
  • 4th-century AD Koine: /ˈklɛ.o/[1]
  • 10th-century Byzantine: /ˈkle.o/[1]

Forms

κλαίω (klaíō) [1] Old Attic κλάω (never contracted); Aeolic κλαΐω; future usually middle, κλαύσομαι.[2][3]

Etymology

The origin is uncertain.[4][1] The present comes from *κλάϝω (*kláwō), as the forms κλαύσομαι (klaúsomai) and κλαυθμός (klauthmós) show.[4][2] The only comparison is Albanian qaj (“to weep”), from a form with a nasal and a yod suffix; if the word is Indo-European, a root Proto-Indo-European *kleh₂u- can be reconstructed, but since no other language has it, Beekes allows that it may be Pre-Greek.[4][1][5]

Ancient grammarians derived it from κλάω (kláō, “to break”), because the voice breaks in grief, or from καλέω (kaléō, “to call”), because mourners call on the dead.[6]

Earliest recorded meaning

It is found from Homer on, meaning to weep and wail, and transitively to weep for someone.[3][2]

Semantic evolution

In Homer and the tragedians it is weeping aloud and mourning the dead; from Aristophanes on it is also plain crying, even for joy in Xenophon.[3] The future κλαύσει “you will weep for it” served as a threat.[2][3]

In the New Testament it is weeping, especially in mourning for the dead.[7] Medieval Greek also had the form κλαίγω, with an inserted /ɣ/ to avoid the hiatus, and the ancient verb lives on as Modern Greek κλαίω (klaío).[8]

Timeline

  • Homer – The Iliad uses it for weeping and for mourning the dead.[3][9]
  • 5th century BC – Aristophanes uses it for plain crying and the future κλαύσει as a threat.[3][2]
  • 1st century AD – The New Testament uses it for weeping and mourning.[7]
  • Modern Greek – κλαίω (klaío) continues the ancient verb, with the medieval variant κλαίγω.[8]

Meanings

Verb

  1. To weep and wail, over someone or something.[3][2]
  2. (transitive) To mourn, weep for a dead person or a misfortune.[3]
  3. To shed tears, cry.[3][7]
  4. (future, as a threat) To be sorry for something: “you will weep for it”.[2][3]

Word family

  • ἀνακλαίω (anaklaíō)
  • ἀντικλαίω (antiklaíō)
  • ἀποκλαίω (apoklaíō)
  • ἐπικλαίω (epiklaíō)
  • κατακλαίω (kataklaíō)
  • περικλαίω (periklaíō)
  • προκλαίω (proklaíō)
  • προσκατακλαίομαι (proskataklaíomai)
  • ἄκλαυτος (áklautos)
  • ἐπίκλαυτος (epíklautos)
  • κλαυθμονή (klauthmonḗ)
  • κλαυθμός (klauthmós)
  • κλαυθμυρισμός (klauthmurismós)
  • κλαυμονή (klaumonḗ)

References

  1. ^ a b c d e f Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ 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
  3. ^ a b c d e f g h i j Diggle, James, et al., eds. (2021), The Cambridge Greek Lexicon, Cambridge: Cambridge University Press
  4. ^ 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
  5. ^ Rix, Helmut, et al. (2001), Lexikon der indogermanischen Verben, 2nd ed., Wiesbaden: Reichert
  6. ^ Etygram: ancient etymologies of Greek words, CEPAM, Université Côte d'Azur, http://appsweb-cepam.unice.fr/etygram
  7. ^ a b c 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
  8. ^ a b Ινστιτούτο Νεοελληνικών Σπουδών (Ίδρυμα Μανόλη Τριανταφυλλίδη) (1998), Λεξικό της κοινής νεοελληνικής, Thessaloniki: Aristotle University of Thessaloniki
  9. ^ Keersmaekers, Alek (2021–2025), GLAUx: The Greek Language Automated corpus, https://github.com/alekkeersmaekers/glaux

Related etymologies

Cite this entry

“Κλαίω.” Etymologically, 30 Oct. 2026, etymologically.com/grc/%CE%BA%CE%BB%CE%B1%CE%AF%CF%89. Accessed 30 Oct. 2026.

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