Etymology and origin of the Latin word lactes
- Confidence
- Established
- Formation
- Derivation
- First attested
- c. 250–184 BC Plautus More words from the 3rd century BC
- Ultimate origin
- Latin lac
Forms
lactēs f pl (genitive lactium); third declension[1]
Etymology
It is from Latin lac (“milk”);[2][3][4] Georges describes these intestines as covered with a milky fat.[4] The TLL also mentions a derivation from lābī “to slip”,[5] and Lewis & Short connected it with Ancient Greek λαγαρός (lagarós) and languidus.[6] De Vaan traces the base to Proto-Italic *(g)lagt- and Proto-Indo-European *glg-t- (“milk”).[3]
Earliest recorded meaning
It is found from Plautus on,[3][7] who uses it humorously of a hungry man's intestines, and in the proverb about tying up a runaway bitch with lambs' guts, for a useless precaution.[4][8]
Semantic evolution
The word named the small intestines of four-footed animals, covered with a milky fat, and the dish of chitterlings made from them, as in Titinius' lactes agninae, lambs' chitterlings.[2][4] Pliny the Elder uses it anatomically for the small intestines, through which food passes,[6] and Persius pairs it with lungs as fat fare.[4] Suetonius' lactes of lampreys refers to the milky substance in fish, the milt.[8][1] Lewis & Short call the word ante-Classical and post-Augustan.[6] Grammarians noted that Plautus used lactes as a masculine plural, distinct from lac.[5]
Timeline
- c. 250–184 BC – Plautus uses it for the guts and in a proverb.[4][8][7]
- end of the 2nd or beginning of the 1st century BC – Titinius mentions lambs' chitterlings.[4][7]
- 34–62 AD – Persius pairs fat lactes with lungs.[4][7]
- 23/24–79 AD – Pliny the Elder uses it for the small intestines.[6][7]
- c. 75–c. 150 AD – Suetonius mentions the lactes of lampreys.[8][7]
Meanings
Noun
Usage notes
Plautus' proverb alligāre fugitīvam canem agnīnīs lactibus, to tie a runaway bitch with lambs' guts, describes a precaution that is bound to fail.[8][4] The singular lactis is given only by Priscian, wrongly according to Lewis & Short.[6]
References
- ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ a b c d Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
- ^ a b c 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 f g h i j Georges, Karl Ernst (1913–1918), Ausführliches lateinisch-deutsches Handwörterbuch, 8th ed., ed. Heinrich Georges, Hannover; Leipzig: Hahn
- ^ a b Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
- ^ a b c d e f Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
- ^ 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 Conte, Gian Biagio; Pianezzola, Emilio; Ranucci, Giuliano (2010), il Latino: Vocabolario della lingua latina, 3rd ed., Florence: Le Monnier
Cite this entry
“Lactes.” Etymologically, 13 Nov. 2026, etymologically.com/la/lactes. Accessed 14 Nov. 2026.
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