Etymologically

Etymology and origin of the Italian word sedici

Confidence
Established
Formation
Inherited
First attested
1211 Florentine bankers' book More words from the 13th century
Inherited from
Latin sedecim
Ultimate origin
Latin sēdecim
Etymology tree
inherited borrowed derived
Latin sex
French six
Italian sei
Spanish seis
Latin sēdecim
Italian sedici
From the same root
Latin sēmēstris ← sex
Latin senus ← sex
Latin sexāgintā ← sex

Pronunciation

  • /ˈse.di.t͡ʃi/[1]

Etymology

It is inherited from Latin sēdecim (“sixteen”), a compound of sex (“six”) and decem (“ten”).[2][3][4][5][1] The Oxford Latin Dictionary also records a spelling with ⟨sexd-⟩.[5]

The same Latin numeral gave French seize, Occitan setse, Catalan setze, Friulian sedis, Sardinian seigi and Dalmatian setko.[3][6] The western languages say “ten and six” instead (Spanish diez y seis, Portuguese dezaseis), and Romanian șase spre zece is “six on ten”.[7]

Earliest recorded meaning

The numeral is first recorded in 1211, in a Florentine bankers' book, in a sum of money: a sedici d. (“at sixteen deniers”).[2][8] The meaning is the cardinal number, ten plus six.[8]

Semantic evolution

In Old Italian sedici also served as a noun for a board of sixteen magistrates, and was combined with other numerals, including Roman figures.[8] Dante counts sixteen hours of night against eight of day in the Convivio, and Savonarola speaks of the sixteen confalonieri of Florence.[9] The northern forms sedexe and sedese appear in Gidino da Sommacampagna and in Sanudo.[9]

The ordinal sedicesimo is recorded before 1375, in Boccaccio, and the bookbinding term in sedicesimo, a sheet folded into sixteen leaves, before 1863.[2] Sedicenne, “sixteen years old”, entered the dictionaries in 1873;[2][3] DELI sees it as modelled on bienne, while Nocentini derives it from Late Latin sedecennis.[2][3] The number also names the hour of four in the afternoon (le sedici), the sixteenth day of the month and a year ending in 16, and in jocular speech the backside, which stands for 16 in the cabala of the lottery.[4][10][11]

Timeline

  • 1211 – Sedici appears in a Florentine bankers' book.[2][8]
  • 1282 – Restoro d'Arezzo writes Capitolo sedeci (“chapter sixteen”).[8]
  • Before 1375 – The ordinal sedicesimo is recorded in Boccaccio.[2]
  • Before 1863 – In sedicesimo is recorded as a book format.[2]
  • 1873 – Sedicenne “sixteen years old” is recorded in Tommaseo–Bellini.[2][3]

Meanings

Numeral

  1. sixteen: ten plus six, written 16 or XVI: Mio fratello ha sedici anni.[4][10][12]
  2. After a noun, used as an ordinal: sixteenth: Apri il libro a pagina sedici.[4][10]

Noun

  1. The number sixteen, and the figure that writes it.[4][13]
  2. The sixteenth day of the month; also a year ending in 16 (nel sedici, 1916 or 1816).[4][13][11]
  3. (plural) Le sedici: four o'clock in the afternoon, 16:00.[4][10][13]
  4. (colloquial, jocular) The backside, which the number 16 stands for in the cabala of the lottery.[4][10][12][11]
  5. (history, plural, capitalized) I Sedici: the leaders of the Catholic League in Paris at the end of the 16th century;[10][14] Sedici Savi, a board of magistrates holding executive power in the Republic of Venice.[10][14]

Word family

  • sedicesimo
  • sedicenne
  • sedicina

References

  1. ^ a b Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i Cortelazzo, Manlio; Zolli, Paolo (1999), Dizionario etimologico della lingua italiana, 2nd ed. by Manlio Cortelazzo and Michele A. Cortelazzo, Bologna: Zanichelli
  3. ^ a b c d e Nocentini, Alberto; Parenti, Alessandro (2010), l'Etimologico: vocabolario della lingua italiana, Firenze: Le Monnier
  4. ^ a b c d e f g h De Mauro, Tullio (ed.) (2003), Grande dizionario italiano dell'uso, CD-ROM version 2.0, Torino: UTET
  5. ^ a b Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  6. ^ Meyer-Lübke, Wilhelm (1935), Romanisches etymologisches Wörterbuch, 3rd ed., Heidelberg: Winter
  7. ^ Körting, Gustav (1907), Lateinisch-romanisches Wörterbuch: etymologisches Wörterbuch der romanischen Hauptsprachen, 3rd ed., Paderborn: Schöningh
  8. ^ a b c d e Tesoro della Lingua Italiana delle Origini (1997–), Opera del Vocabolario Italiano, CNR, Firenze; tlio.ovi.cnr.it
  9. ^ a b Battaglia, Salvatore; Bàrberi Squarotti, Giorgio (1961–2002), Grande dizionario della lingua italiana, 21 vols., Torino: UTET; digital ed. Accademia della Crusca
  10. ^ a b c d e f g Devoto, Giacomo; Oli, Gian Carlo; Serianni, Luca; Trifone, Maurizio (2026), Nuovo Devoto–Oli: il vocabolario dell'italiano contemporaneo, digital ed., Milano: Le Monnier
  11. ^ a b c Gabrielli, Aldo (2020), Grande dizionario italiano, digital ed., Milano: Hoepli
  12. ^ a b Zingarelli, Nicola (2009), Lo Zingarelli 2010: vocabolario della lingua italiana, Bologna: Zanichelli
  13. ^ a b c Vocabolario della lingua italiana Treccani (2011), Roma: Istituto della Enciclopedia Italiana
  14. ^ a b Duro, Aldo (ed.) (1986–1994), Vocabolario della lingua italiana, Roma: Istituto della Enciclopedia Italiana; online ed. treccani.it/vocabolario (2008 copy)

Related etymologies

Cite this entry

“Sedici.” Etymologically, 10 Nov. 2026, etymologically.com/it/sedici. Accessed 11 Nov. 2026.

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