Etymology and origin of the Latin word lethargicus
- Confidence
- Established
- Formation
- Borrowing
- First attested
- 65–8 BC Horace, Satires More words from the 1st century BC
- Borrowed from
- Ancient Greek ληθαργικός
- Ultimate origin
- Ancient Greek λήθαργος
Forms
lēthārgicus (feminine lēthārgica, neuter lēthārgicum); first/second-declension adjective[1]
Etymology
It is borrowed from Ancient Greek ληθαργικός (lēthargikós, “drowsy”),[2][1][3] from λήθαργος (lḗthargos, “forgetful; inactive”).[3][4] Köbler compares λήθη (lḗthē, “forgetfulness”) and ἀργός (argós, “idle”).[4]
Earliest recorded meaning
Horace is the first to use it, as a noun for a person suffering from lethargy: “ut lethargicus hic cum fit pugil et medicum urget” (“as when this sleepy man turns boxer and goes for his doctor”).[5][6][7]
Semantic evolution
The noun is frequent in Pliny the Elder, usually in the plural,[6][7] who also has the adjective in morbus lethargicus.[5] Caelius Aurelianus speaks of the lethargic illness,[6] Augustine of lethargic sleep,[5][6] and Marcellus notes that the Greeks call the drowsy lethargici.[8]
Medieval Latin, often spelling it litargicus or letargicus, used it of the sick[9] and figuratively of the sluggish and negligent.[10] English borrowed it in the late 14th century as litargik.[3]
Timeline
- 65–8 BC – Horace uses it of a lethargic man.[5][4]
- 23/24–79 AD – Pliny the Elder uses the noun and the adjective.[5][6][4]
- 354–430 AD – Augustine speaks of lethargic sleep.[5][6][4]
- 5th century AD – Caelius Aurelianus speaks of the lethargic illness.[6][4]
- late 14th century – English borrows it as litargik.[3]
Meanings
Adjective
Noun
Related words
Usage notes
Medieval texts often spell it litargicus or letargicus.[9]
References
- ^ a b c d Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ a b Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
- ^ a b c d Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
- ^ a b c d e f Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
- ^ a b c d e f g h Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
- ^ a b c d e f g h Georges, Karl Ernst (1913–1918), Ausführliches lateinisch-deutsches Handwörterbuch, 8th ed., ed. Heinrich Georges, Hannover; Leipzig: Hahn
- ^ a b Conte, Gian Biagio; Pianezzola, Emilio; Ranucci, Giuliano (2010), il Latino: Vocabolario della lingua latina, 3rd ed., Florence: Le Monnier
- ^ Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
- ^ a b Latham, R. E., D. R. Howlett, R. K. Ashdowne, et al. (1975–2013), Dictionary of Medieval Latin from British Sources, London: British Academy / Oxford University Press
- ^ a b Novum Glossarium Mediae Latinitatis ab anno DCCC usque ad annum MCC (1957–), Copenhagen / Geneva / Paris: Union Académique Internationale; IRHT
Related etymologies
- -inus · also from Greek
- -eus · also from Greek
- patriarcha · also from Greek
- microscopium · also from Greek
- arteria · also from Greek
- anachoreta · also from Greek
- alleluia · also from Greek
- palladium · also from Greek
Cite this entry
“Lethargicus.” Etymologically, 7 Nov. 2026, etymologically.com/la/lethargicus. Accessed 8 Nov. 2026.
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