Etymology and origin of the Latin word lacteus
- Confidence
- Established
- Formation
- Derivation
- First attested
- 280/260–before 200 BC, Livius Andronicus
- Ultimate origin
- Latin (lac)
Forms
lacteus (feminine lactea, neuter lacteum); first/second-declension adjective[1]
Etymology
It is from Latin lac (“milk”) + -eus.[2][3][1] De Vaan takes lac to be cognate with Ancient Greek γάλα (gála, “milk”); he rejects Leumann's view that it was borrowed from Greek.[4] Wiktionary notes that the etymology is controversial, with no agreement on the cognates or on whether the word was inherited or borrowed.[1]
Earliest recorded meaning
It is found first in Livius Andronicus,[4][3][5] meaning of milk: a line of his tragedy speaks of milking out milky help.[2]
Semantic evolution
It meant made of or full of milk, as udders in Virgil;[2][6] Martial uses it of a sucking pig and home-born slaves fed on milk.[2][7] By likeness it was milky, as the juice of the fig in Pliny the Elder, and above all milk-white, as the necks in Virgil.[2][8] Cicero's Aratea has lacteus orbis for the Milky Way, Ovid via lactea and Pliny circulus lacteus.[2][7] Quintilian praises the “milky richness”, lactea ubertas, of Livy's style.[8][7]
Medieval writers in Britain use it of food made of milk,[9] and Niermeyer gives the senses sweet and pure.[10]
Timeline
- 280/260–before 200 BC – Livius Andronicus uses it of milk.[2][5]
- 81–43 BC – Cicero calls the Milky Way lacteus orbis.[2][5]
- 70–19 BC – Virgil uses it of milk-white necks.[2][8][5]
- c. 35–95/96 AD – Quintilian praises the lactea ubertas of Livy.[8][5]
Meanings
Adjective
- Of milk, made of milk; full of milk.[2][6]
- Unweaned, sucking.[2][6]
- Milky, like milk; of plants, full of milky juice.[2][8]
- Milk-white.[2][6]
- lacteus orbis, circulus lacteus, via lactea: the Milky Way.[2][7]
- (of style) Rich, flowing.[8][7]
- (Medieval Latin) Sweet, pure.[10]
Word family
- lacteolus
Related words
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 l m n Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
- ^ a b Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
- ^ a b de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
- ^ a b c d e Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
- ^ a b c d Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
- ^ a b c d e Georges, Karl Ernst (1913–1918), Ausführliches lateinisch-deutsches Handwörterbuch, 8th ed., ed. Heinrich Georges, Hannover; Leipzig: Hahn
- ^ a b c d e f Conte, Gian Biagio; Pianezzola, Emilio; Ranucci, Giuliano (2010), il Latino: Vocabolario della lingua latina, 3rd ed., Florence: Le Monnier
- ^ 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 Niermeyer, J. F. (1976), Mediae Latinitatis Lexicon Minus, Leiden: Brill
Cite this entry
“Lacteus.” Etymologically, 20 Oct. 2026, etymologically.com/la/lacteus. Accessed 20 Oct. 2026.
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