Etymology and origin of the Latin word nudius
- Confidence
- Established
- Formation
- Compound
- First attested
- c. 250–184 BC, Plautus
- Ultimate origins
- Proto-Indo-European *nuLatin diēs
Forms
nū̆diū̆s (not comparable)[1]
Etymology
It is a compound of ⟨nu-⟩, the element of nunc (“now”), and ⟨dius⟩, an old form of diēs (“day”), so “it is now the … day”.[2][3][4] Wiktionary traces the first part to Proto-Indo-European *nu (“now”), which is also in num and nūper (“lately”), and notes that the length of its vowel is uncertain.[1] De Vaan suspects that the ⟨dius⟩ here, as in mediusfidius, may be the old nominative singular of the word for “day”, from Proto-Indo-European *dii̯ēus, with /eu/ becoming /ū/;[5] Wiktionary likewise takes it as the original nominative, later remodelled on the accusative.[1]
Festus, as abridged by Paulus, explained ⟨nudius tertius⟩ as compounded of ⟨nunc⟩ and ⟨die tertio⟩.[3]
Earliest recorded meaning
It is found from Plautus on,[6] always with an ordinal number: a character in the Truculentus says “I came to Athens from Lemnos the day before yesterday” (nam ego Lemno advenio Athenas nudius tertius).[3]
Semantic evolution
Plautus has it with several ordinals, from tertius to sextus;[3][4] Cicero writes nudius tertius in his letters and nudius tertius decimus in the Philippics.[3][7] The Vulgate has it in the Acts of the Apostles.[3] From it Ambrose and Augustine made the adjective nudiustertiānus “of the day before yesterday”.[7]
Timeline
- c. 250–184 BC – Plautus uses nudius tertius, quartus, quintus and sextus.[3][4][6]
- 81–43 BC – Cicero writes that he sent a longer letter nudius tertius.[3][6]
- c. 340–397 AD – Ambrose has the derived adjective nudiustertiānus.[7][6]
- 390–406 AD – The Vulgate uses it in the Acts of the Apostles.[3][6]
Meanings
Adverb
- (with an ordinal number) It is now the … day since: nudius tertius “three days ago” by Roman counting, that is the day before yesterday;[2][3][7] nudius quintus “four days ago”.[2][3][7]
Word family
- nū̆diū̆stertiānus
Usage notes
Romans counted inclusively, so nudius tertius means the day before yesterday.[2][3] The phrase is also written as one word, nudiustertius.[2][5]
References
- ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ a b c d e Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
- ^ a b c d e f g h i j k l Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
- ^ a b c Georges, Karl Ernst (1913–1918), Ausführliches lateinisch-deutsches Handwörterbuch, 8th ed., ed. Heinrich Georges, Hannover; Leipzig: Hahn
- ^ 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 e Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
Cite this entry
“Nudius.” Etymologically, 24 Oct. 2026, etymologically.com/la/nudius. Accessed 24 Oct. 2026.
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