Etymology and origin of the Italian word undici
- Confidence
- Established
- Formation
- Inherited
- First attested
- 1211 account book of Florentine bankers More words from the 13th century
- Inherited from
- Latin undecim
- Ultimate origin
- Latin undecim
Etymology tree
From the same root
Pronunciation
- /ˈun.di.t͡ʃi/[1]
Forms
undici (invariable)[2] Old Italian forms include undeci, undece, undese and ondesi.[3]
Etymology
It is inherited from Latin ūndecim (“eleven”), a compound of ūnus (“one”) and decem (“ten”).[4][5][2][1] The same Latin word gave French onze, Occitan onze, Catalan onze, Spanish once and Portuguese onze, and Dalmatian jonko in Vegliote;[5][6][7] Romanian has instead a new phrase, un spre zeci.[5][6][7]
The Latin word goes back to an earlier *oinodecem, from Proto-Indo-European *óynom and *déḱm̥t.[1] The ⟨i⟩ of the second part, against the ⟨e⟩ of the word for “ten”, is not well explained: de Vaan thinks it was taken from the ordinals such as undecimus.[8]
The Italian final ⟨-i⟩ is itself a problem, discussed by Castellani.[4] The form undeci, closer to Latin, was also used (Ariosto, 1532), and Gherardini remarked that the form with ⟨-i⟩ was the more common one, “though without reason”.[4]
Earliest recorded meaning
The first record is in an account book of Florentine bankers of 1211, as the number made of ten units and one.[4][3][2]
Semantic evolution
Old Italian used the numeral in compounds (dugentoundici) and for a score at dice.[3] As a noun it names the number and its sign (14th century, the Ottimo commento).[4]
In the 20th century undici became a name for a football team, from its eleven players (1942), and l'undici azzurro the Italian national side (1965).[4] In betting it is a winning score of the second category.[2]
Timeline
- 1211 – An account book of Florentine bankers has undici.[4][3]
- 1304–1308 – Dante uses the ordinal undecimo.[4]
- 1300s – The noun undici names the number and its sign.[4]
- 1532 – Ariosto writes undeci.[4]
- Before 1698 – Francesco Redi uses undicesimo.[4]
- 1879 – Undicenne “eleven-year-old” is recorded.[4]
- 1942 – Undici is recorded for a football team.[4]
Meanings
Numeral
- eleven, ten plus one; written 11 or XI: ha undici anni.[2][1]
- After a noun, with ordinal value, eleventh: il capitolo undici.[2]
Noun
- The number eleven and the sign for it.[2][4]
- The eleventh day of a month, or the eleventh year of a century: l'undici marzo.[2]
- Eleven o'clock, or 23:00.[2]
- (football) A team of eleven players: l'undici azzurro.[2][4]
Word family
- undicesimo
- undecimo
- undicenne
Related words
References
- ^ a b c d Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ a b c d e f g h i j De Mauro, Tullio (ed.) (2003), Grande dizionario italiano dell'uso, CD-ROM version 2.0, Torino: UTET
- ^ a b c d Tesoro della Lingua Italiana delle Origini (1997–), Opera del Vocabolario Italiano, CNR, Firenze; tlio.ovi.cnr.it
- ^ a b c d e f g h i j k l m n o Cortelazzo, Manlio; Zolli, Paolo (1999), Dizionario etimologico della lingua italiana, 2nd ed. by Manlio Cortelazzo and Michele A. Cortelazzo, Bologna: Zanichelli
- ^ a b c Nocentini, Alberto; Parenti, Alessandro (2010), l'Etimologico: vocabolario della lingua italiana, Firenze: Le Monnier
- ^ a b Meyer-Lübke, Wilhelm (1935), Romanisches etymologisches Wörterbuch, 3rd ed., Heidelberg: Winter
- ^ a b Körting, Gustav (1907), Lateinisch-romanisches Wörterbuch: etymologisches Wörterbuch der romanischen Hauptsprachen, 3rd ed., Paderborn: Schöningh
- ^ de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
Related etymologies
Cite this entry
“Undici.” Etymologically, 10 Nov. 2026, etymologically.com/it/undici. Accessed 10 Nov. 2026.
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