Etymology and origin of the Ancient Greek word ἐνέργεια
- Confidence
- Established
- Formation
- Derivation
- First attested
- 300s BC Aristotle
- Ultimate origin
- Proto-Indo-European *werǵ-
Etymology tree
From the same root
Pronunciation
Forms
ἐνέργειᾰ (enérgeia) f (genitive ἐνεργείᾱς); first declension[1]
Etymology
It is formed from Ancient Greek ἐνεργής (energḗs) + -ια (-ia),[1] the adjective being a later form of ἐνεργός (energós, “active, working”).[2][1] The CGL relates it to the verb ἐνεργέω (energéō, “to be active”).[3] The adjective is formed from ἐν (en, “in”) and ἔργον (érgon, “work”).[1][4]
That noun goes back to Proto-Indo-European *wérǵom, from the root Proto-Indo-European *werǵ- (“to work”), and is cognate with Old High German werc and Old Norse verk.[5][1]
Earliest recorded meaning
The word is first common in Aristotle, whose works are the earliest texts in which GLAUx finds it.[6][2] He uses it for activity as opposed to a mere disposition (ἕξις (héxis)), and for actuality as opposed to potentiality (δύναμις (dúnamis)).[2][3]
Semantic evolution
In Aristotle's philosophy ἐνέργεια is the actual being of a thing, opposed to potentiality and to matter, and distinguished from ἐντελέχεια (entelékheia), complete reality; ἐνεργείᾳ means “actually”.[2][7] In his Rhetoric it is the vividness of a style that sets things before the eyes.[2][3]
Hellenistic writers use it for activity and vigour in general: Polybius of the vitality of a living creature and of a king's energetic action, Diodorus of the force of an engine.[2][7] Grammarians call the active force of a verb ἐνέργεια as opposed to πάθος, and Galen uses it for the function of an organ and the activity of a drug.[2] In Jewish and Christian writing, as in pagan religious texts, it is above all the working of a divine or supernatural power: the New Testament speaks of the working of God's might and of Satan.[8][2] The magical papyri speak of sacred operations, and the Hermetic writings of cosmic forces.[2]
The word lived on through the Middle Ages.[9] Late Latin borrowed it as Latin energia, and through French it became the English word energy, first used in the 1590s of force of expression.[10][4] Modern Greek ενέργεια (enérgeia) is a learned continuation, and its sense in physics is a semantic loan from French and English.[11] Babiniotis lists modern compounds such as ραδιενέργεια (radienérgeia, “radioactivity”).[4]
Timeline
- 4th century BC – Aristotle uses it for activity and for actuality opposed to potentiality.[2][3][7]
- 2nd century BC – Polybius uses it of the vigour of living things and of energetic action.[2][7]
- 1st century BC – Diodorus uses it of the force of an engine.[2][7]
- 1st century AD – The New Testament uses it of the working of God's power and of Satan.[8]
- 2nd century AD – Galen uses it for the function of the body's organs and the activity of drugs.[2][7]
- 1590s – English borrows it, through Late Latin and French, as energy.[10]
- Modern Greek – ενέργεια (enérgeia) takes the scientific sense “energy” from French and English.[11]
Meanings
Noun
- Activity, operation, functioning, as opposed to a disposition.[2][3][7]
- Energy, vigour, forceful action; effective use (of weapons).[7][3]
- Performance or carrying out (of duties).[2][7]
- (philosophy) Actuality, as opposed to potentiality.[2][3]
- (rhetoric) Vividness of style.[2][3]
- (grammar) Active force or voice, as opposed to the passive.[2][7]
- (medicine) The function of an organ; the activity of a drug.[2]
- (Koine) The working of a divine or supernatural power; a magical operation; in the plural, cosmic forces.[8][2]
Related words
References
- ^ a b c d e f g h Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ a b c d e f g h i j k l m n o p q r s t 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 Diggle, James, et al., eds. (2021), The Cambridge Greek Lexicon, Cambridge: Cambridge University Press
- ^ a b c Babiniotis, Georgios (2010), Ετυμολογικό λεξικό της νέας ελληνικής γλώσσας [Etymological Dictionary of Modern Greek], Athens: Κέντρο Λεξικολογίας
- ^ 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
- ^ 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 Rodríguez Adrados, Francisco, et al., eds. (1980–), Diccionario Griego-Español, Madrid: CSIC, http://dge.cchs.csic.es/xdge
- ^ 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 Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
- ^ a b Ινστιτούτο Νεοελληνικών Σπουδών (Ίδρυμα Μανόλη Τριανταφυλλίδη) (1998), Λεξικό της κοινής νεοελληνικής, Thessaloniki: Aristotle University of Thessaloniki
Borrowed into
- Latin energia
Cite this entry
“Ἐνέργεια.” Etymologically, 1 Nov. 2026, etymologically.com/grc/%E1%BC%90%CE%BD%CE%AD%CF%81%CE%B3%CE%B5%CE%B9%CE%B1. Accessed 2 Nov. 2026.
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