Etymology and origin of the Ancient Greek word ἄγνοια
- Confidence
- Established
- Formation
- Derivation
- First attested
- 600–400 BC Aeschylus More words from the 6th century BC
- Ultimate origin
- Ancient Greek γιγνώσκω
Etymology tree
From the same root
Pronunciation
Forms
ᾰ̓́γνοιᾰ (ágnoia) f (genitive ᾰ̓γνοίᾱς); first declension[1] Also ἀγνοίᾱ in Sophocles, Ionic ἀγνοίη.[2][3]
Etymology
It is from Ancient Greek ἀ- (a-, “not”) + γιγνώσκω (gignṓskō, “to know”) + -ία (-íā), an abstract noun of not knowing.[1][4][3]
Earliest recorded meaning
It is first found in Aeschylus: in the Agamemnon Thyestes eats of the cannibal feast “in ignorance”, and in the Suppliants a man may kill a friend through ignorance.[4][3]
Semantic evolution
In tragedy it could mean failing to recognize a person, and Sophocles has a woman “whom you see but pretend not to know”.[2][4][3] Thucydides, Xenophon and the orators use it for ignorance of facts that leads to error, and Demosthenes and Polybius for a mistake itself.[4][2][3] In philosophy Plato and Aristotle set it against ἐπιστήμη (epistḗmē, “knowledge”),[4] Plato calls it an emptiness of the soul.[4] Menander brings Ignorance on stage as a deity, and Diphilus and Machon wrote comedies with this title.[2][3]
In the Septuagint and the New Testament it is ignorance of God, or a fault committed unknowingly, almost a sin: in Acts Peter tells the people that they acted against Jesus in ignorance.[5][3] Modern Greek has it as a learned word, Modern Greek άγνοια (ágnia).[6]
Timeline
- 6th–5th century BC – Aeschylus uses it of acting without knowing.[4][3]
- 5th century BC – Sophocles uses it of failing to recognize someone, and Thucydides of ignorance of facts.[2][4]
- 5th–4th century BC – Plato opposes it to knowledge.[4]
- 4th century BC – Demosthenes uses it for a mistake.[2][3]
- 4th–3rd century BC – Menander brings Ignorance on stage as a deity.[2][3]
- 1st century AD – The Acts of the Apostles uses it of those who acted against Jesus unknowingly.[5]
Meanings
Noun
- Failure to recognize a person or thing.[2][4]
- Ignorance, lack of knowledge or understanding; misconception; in the dative and with prepositions, unknowingly, by inadvertence.[4][2][3]
- A mistake, an error of conduct.[2][3]
- (personified) Ignorance as a deity.[2][3]
- (Septuagint, New Testament) Ignorance of God; a fault committed unknowingly.[5]
Related words
- ἀγνοέω (agnoéō)
- γιγνώσκω (gignṓskō)
Usage notes
Hesychius glosses it with ἀγνωσία (agnōsía) and “lack of learning”, and Photius with “neglect”.[7][8]
References
- ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ a b c d e f g h i j k Diggle, James, et al., eds. (2021), The Cambridge Greek Lexicon, Cambridge: Cambridge University Press
- ^ a b c d e f g h i j k l m Rodríguez Adrados, Francisco, et al., eds. (1980–), Diccionario Griego-Español, Madrid: CSIC, http://dge.cchs.csic.es/xdge
- ^ 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 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
- ^ Ινστιτούτο Νεοελληνικών Σπουδών (Ίδρυμα Μανόλη Τριανταφυλλίδη) (1998), Λεξικό της κοινής νεοελληνικής, Thessaloniki: Aristotle University of Thessaloniki
- ^ Hesychius of Alexandria, Lexicon, ed. Kurt Latte (Α–Ο, Copenhagen 1953–1966) and Moritz Schmidt (Π–Ω, Jena 1858–1868)
- ^ Photius, Lexicon, ed. Christos Theodoridis, vol. 1 (Α–Δ) (Berlin: De Gruyter, 1982); ed. Richard Porson (Cambridge, 1822)
Cite this entry
“Ἄγνοια.” Etymologically, 13 Nov. 2026, etymologically.com/grc/%E1%BC%84%CE%B3%CE%BD%CE%BF%CE%B9%CE%B1. Accessed 14 Nov. 2026.
Last edited on . ·