Etymology and origin of the Ancient Greek word κακός
- Confidence
- Unknown
- First attested
- Mycenaean (Linear B)
- From
- Pre-Greek
Pronunciation
Forms
κᾰκός (kakós) m (feminine κᾰκή, neuter κᾰκόν); first/second declension[1] Mycenaean Greek ka-zo-e (Pylos, PY Va 1323), the comparative plural “worse”, matching κακίονες.[2]
Etymology
It has no clear etymology.[3] Frisk and Chantraine see it as an expressive word of everyday speech, which, as with many words for “bad”, has no established origin.[4][5] Beekes lists the proposals: de Lamberterie compares Avestan kasu- (“small, slight”), with its comparative and superlative, which Beekes would reconstruct as Proto-Indo-European *kn̥ḱ-; others compare Lithuanian keñkti (“to ache”), from *kenk-, and the Germanic word for hunger, Proto-Germanic *hungruz; or the word could be Pre-Greek.[3][1] It is also often connected with the nursery word κακκάω (kakkáō, “to defecate”), which Babiniotis favours but Frisk doubts.[4][6]
The similar Neo-Phrygian word is a borrowing from Greek, though Old Phrygian seems to have had a similar stem as well.[3][5]
Earliest recorded meaning
It is common from the Iliad on.[7][3] In Homer it is used of people who are ugly, low-born, cowardly or feeble, and of bad, harmful things.[8][9]
Semantic evolution
In Homer κακός is the opposite of ἐσθλός and ἀγαθός in the warrior's world: a man is κακός if he is ugly, of mean birth, or a coward.[8][9] It also describes someone who is poor at his job, things of poor quality, and things that bring harm, such as a bad death or an evil omen.[9][8] In Classical Greek the moral sense, “wicked”, becomes central, and the neuter τὸ κακόν means evil or misfortune.[8][9]
The New Testament uses it for what is morally wrong and for what is harmful.[10] Medieval Greek kept it, with χειρότερος as its comparative, and it lives on in Modern Greek κακός (kakós).[11][12] English has the learned prefix caco-, “bad”, from the Latinised form of the word.[13]
Timeline
- Mycenaean period – A Pylos tablet has the comparative Mycenaean Greek ka-zo-e, “worse”.[2]
- Homer – The Iliad and the Odyssey use it of ugly, low-born, cowardly and useless people and of harmful things.[8][9]
- 5th century BC – Sophocles' Oedipus the King has κακός τ’ ὢν κἀκ κακῶν, “base and born of the base”.[8]
- 1st century AD – The New Testament uses it for moral evil.[10]
- Modern Greek – The word survives as κακός.[12]
Meanings
Adjective
- (of persons) Ugly, unimpressive in looks.[8][9]
- Low-born, of humble birth.[8][9]
- Cowardly, craven; feeble.[8][9]
- Unskilled or useless at a task; of things, worthless, of poor quality.[9]
- Morally bad, wicked, evil.[8][10]
- Harmful, ruinous, unlucky; τὸ κακόν, evil, misfortune.[8][9]
Word family
- ἄκακος (ákakos)
- κάκη (kákē)
- κακηγορέω (kakēgoréō)
- κακηγορία (kakēgoría)
- κακήγορος (kakḗgoros)
- κακία (kakíā)
- κακίζω (kakízō)
- κάκιστος (kákistos)
- κακόβιος (kakóbios)
- κακοβουλία (kakoboulía)
- κακοδαιμονία (kakodaimonía)
- κακοδαίμων (kakodaímōn)
- κακοδοξία (kakodoxíā)
- κακόδοξος (kakódoxos)
Related words
- English caco-
References
- ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ a b Микенско-русский словарь (Mycenaean–Russian dictionary)
- ^ 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
- ^ a b Frisk, Hjalmar (1960–1972), Griechisches etymologisches Wörterbuch, 3 vols, Heidelberg: Carl Winter
- ^ a b Chantraine, Pierre (2009), Dictionnaire étymologique de la langue grecque: histoire des mots, new ed. with a supplement (Chroniques d'étymologie grecque 1–10), Paris: Klincksieck
- ^ Babiniotis, Georgios (2010), Ετυμολογικό λεξικό της νέας ελληνικής γλώσσας [Etymological Dictionary of Modern Greek], Athens: Κέντρο Λεξικολογίας
- ^ Keersmaekers, Alek (2021–2025), GLAUx: The Greek Language Automated corpus, https://github.com/alekkeersmaekers/glaux
- ^ 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
- ^ a b c d e f g h i j Diggle, James, et al., eds. (2021), The Cambridge Greek Lexicon, Cambridge: Cambridge University Press
- ^ 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
- ^ Kriaras, Emmanuel, Επιτομή του Λεξικού της μεσαιωνικής ελληνικής δημώδους γραμματείας 1100–1669, Κέντρο Ελληνικής Γλώσσας, https://www.greek-language.gr
- ^ a b Ινστιτούτο Νεοελληνικών Σπουδών (Ίδρυμα Μανόλη Τριανταφυλλίδη) (1998), Λεξικό της κοινής νεοελληνικής, Thessaloniki: Aristotle University of Thessaloniki
- ^ Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
Related etymologies
Cite this entry
“Κακός.” Etymologically, 29 Oct. 2026, etymologically.com/grc/%CE%BA%CE%B1%CE%BA%CF%8C%CF%82. Accessed 30 Oct. 2026.
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