Etymologically

κλέπτης

Etymology and origin of the Ancient Greek word κλέπτης

Confidence
Established
Formation
Derivation
First attested
700s BC Homer, Iliad More words from the 8th century BC
Ultimate origin
Proto-Indo-European *klep-
Etymology tree
inherited borrowed derived
Ancient Greek κλέπτω (kléptō)
Ancient Greek κλέπτης (kléptēs)
From the same root
Ancient Greek κλεψύδρα (klepsúdrā) ← κλέπτω

Pronunciation

  • 5th-century BC Attic: /klép.tɛːs/[1]
  • 4th-century AD Koine: /ˈklep.tis/[1]
  • 10th-century Byzantine: /ˈklep.tis/[1]

Forms

κλέπτης (kléptēs) m (genitive κλέπτου, feminine κλέπτῐς); first declension[1]

Etymology

It is formed from Ancient Greek κλέπτω (kléptō, “to steal”) + -της (-tēs), an agent noun.[1][2][3] Beekes takes the verb as a Greek renewal of an older present seen in Latin clepō (“I steal”), from a root Proto-Indo-European *klep- (“to steal”) that may be a western development of a verb for “grab”.[2]

The Etymologicum Magnum derived it from καλύπτω (kalúptō, “to cover”), since a thief takes things in secret, but Beekes rejects any link between the verbs for “steal” and “cover”.[4][2]

Earliest recorded meaning

In a simile of the Iliad a mist on the mountains is no friend to the shepherd but better than night to the thief.[3][5][6]

Semantic evolution

Aeschylus calls Prometheus the thief of fire, and Sophocles uses the word more generally for a cheat or knave.[5][7] In Attic it is the plain thief, set beside the robber, as in Plato's Republic, or against him, as in the comic poet Myrtilus; the orators and Plato also use it for those who embezzle public money.[5][7] Aristotle names a logical fallacy “the thief's argument”.[5]

The Septuagint uses it in the laws on theft, and the New Testament says that the day of the Lord comes “like a thief in the night”, calls Judas a thief and calls the false leaders who came before Jesus thieves and robbers.[8][6] It was borrowed as Latin clepta.[9]

Medieval Greek pronounced it κλέφτης (kléftis), with /pt/ becoming /ft/, for a thief, a robber or an abductor.[10][11] In Modern Greek κλέφτης (kléftis) is a thief, and also one of the klephts, the bands that took to the mountains during Ottoman rule and formed the resistance to Turkish abuses.[11]

Timeline

  • Homer – The Iliad sets the thief against the shepherd in a simile.[3][5]
  • 6th–5th century BC – Aeschylus calls Prometheus the thief of fire.[5][7][12]
  • 5th century BC – Sophocles uses it for a cheat or knave, and Myrtilus sets the thief against the robber.[5][12]
  • 5th–4th century BC – Plato and the Attic orators use it for an embezzler of public funds.[7][12]
  • 4th century BC – Aristotle names a fallacy “the thief's argument”.[5][12]
  • 1st century AD – The Revelation of John has the Lord coming like a thief.[6][12]
  • 1100–1669 – Vernacular Greek has κλέφτης (kléftis), for a thief, a robber or an abductor.[10]
  • Modern Greek – κλέφτης (kléftis) is a thief, and in history one of the klephts.[11]

Meanings

Noun

  1. A thief.[5][7][6]
  2. A robber of a person.[7]
  3. An embezzler of public money.[7]
  4. A cheat, knave.[5]
  5. (logic) “The thief's argument”, a fallacy.[5]

Word family

  • κλεπτικός (kleptikós)
  • κλεπτίστατος (kleptístatos)
  • ζωστηροκλέπτης (zōstērokléptēs)
  • ποτηριοκλέπτης (potēriokléptēs)
  • συγκλέπτης (sunkléptēs)
  • κλοπή (klopḗ)
  • Latin clepta

References

  1. ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ 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
  3. ^ a b c Cunliffe, Richard John (1924), A Lexicon of the Homeric Dialect, London: Blackie and Son
  4. ^ Gaisford, Thomas, ed. (1848), Etymologicum Magnum, Oxford: Oxford University Press
  5. ^ 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
  6. ^ a b c d 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
  7. ^ a b c d e f g Diggle, James, et al., eds. (2021), The Cambridge Greek Lexicon, Cambridge: Cambridge University Press
  8. ^ Lust, Johan; Eynikel, Erik; Hauspie, Katrin (2003), Greek-English Lexicon of the Septuagint, rev. ed., Stuttgart: Deutsche Bibelgesellschaft
  9. ^ Saalfeld, Günther Alexander (1874), Index Graecorum vocabulorum in linguam latinam translatorum, Berlin: Weidmann
  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 c Ινστιτούτο Νεοελληνικών Σπουδών (Ίδρυμα Μανόλη Τριανταφυλλίδη) (1998), Λεξικό της κοινής νεοελληνικής, Thessaloniki: Aristotle University of Thessaloniki
  12. ^ a b c d e Rodríguez Adrados, Francisco, et al., eds. (1980–), Diccionario Griego-Español, Madrid: CSIC, http://dge.cchs.csic.es/xdge
Cite this entry

“Κλέπτης.” Etymologically, 13 Nov. 2026, etymologically.com/grc/%CE%BA%CE%BB%CE%AD%CF%80%CF%84%CE%B7%CF%82. Accessed 14 Nov. 2026.

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