λήθαργος

Pronunciation

• IPA (5th-century BC Attic): /lɛ̌ː.tʰaːr.ɡos/^[1]
• IPA (4th-century AD Koine): /ˈli.θar.ɣos/^[1]
• IPA (10th-century Byzantine): /ˈli.θar.ɣos/^[1]

Forms

λήθᾱργος (lḗthārgos) m or f (neuter λήθᾱργον); second declension^[1]

Etymology

Beekes considers it Pre-Greek, from Pre-Greek, because of its variation with λαίθαργος (laíthargos, “treacherous”): the alternation ⟨η⟩ / ⟨αι⟩ is typical of substrate words.^[2][3] The PHILOGLOSSA database rates this as highly reliable.^[4]

The traditional analysis is a compound of λήθη (lḗthē, “forgetfulness”) and ἀργός (argós, “idle”), “idle through forgetfulness”, which Frisk found hard to square with the illness.^[5][1] Beekes thinks the word, or at least its meaning, was influenced by these words.^[5][1][2] It was probably first an adjective with νόσος (nósos, “disease”) or πυρετός (puretós, “fever”) understood.^[2][5]

Earliest recorded meaning

The Hippocratic writings use it for a lethargic fever, a disease of drowsiness.^[2][4]

Semantic evolution

Aristotle and the Stoic Chrysippus use it for lethargy, and Galen and Paul of Aegina for the illness.^[2][4] From Menander on it is also an adjective, “forgetful”.^[2][1] Hesychius records other senses: “treacherous”, a dog that fawns but bites in secret (from Sophocles), and dull, sluggish horses.^[6]

Latin borrowed it as lēthargus.^[1] Modern Greek λήθαργος (líthargos) is a learned word for pathological deep sleep, figurative torpor, and in botany the dormancy of seeds.^[7]

Timeline

• 5th century BC – The Hippocratic writings describe the disease.^[2][4]
• 4th century BC – Aristotle uses it for lethargy.^[2]
• 4th–3rd century BC – Menander uses it as an adjective, “forgetful”.^[2]
• 2nd century AD – Galen discusses the illness.^[4]
• 5th century AD (probably) – Hesychius glosses it as “forgetful” and “treacherous”.^[6]

Meanings

Noun

1. lethargy, or (medicine) a lethargic fever.^[2][1]

Adjective

1. forgetful.^[2][6]
2. Treacherous, of a dog that fawns and bites in secret.^[6]
3. Sluggish, of horses.^[6]

Word family

• ληθαργία (lēthārgíā)

Related words

• λαίθαργος (laíthargos)
• λήθη (lḗthē)
• Latin lethargus
• English lethargy

References

1. ^ a b c d e f g h i Wiktionary, the free dictionary, https://en.wiktionary.org
2. ^ a b c d e f g h i j k 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. ^ Beekes, Robert S. P. (2014), Pre-Greek: Phonology, Morphology, Lexicon, ed. Stefan Norbruis, Leiden; Boston: Brill
4. ^ a b c d e Scarborough, Matthew (2025), PHILOGLOSSA: database of Pre-Greek and other non-Indo-European words in Ancient Greek, version 1.0
5. ^ a b c Frisk, Hjalmar (1960–1972), Griechisches etymologisches Wörterbuch, 3 vols, Heidelberg: Carl Winter
6. ^ a b c d e Hesychius of Alexandria, Lexicon, ed. Kurt Latte (Α–Ο, Copenhagen 1953–1966) and Moritz Schmidt (Π–Ω, Jena 1858–1868)
7. ^ Ινστιτούτο Νεοελληνικών Σπουδών (Ίδρυμα Μανόλη Τριανταφυλλίδη) (1998), Λεξικό της κοινής νεοελληνικής, Thessaloniki: Aristotle University of Thessaloniki