Etymologically

Etymology and origin of the Italian word tredici

Confidence
Established
Formation
Inherited
First attested
1211 Florentine bankers' book More words from the 13th century
Inherited from
Latin tredecim
Ultimate origin
Latin tredecim

Pronunciation

  • /ˈtre.di.t͡ʃi/[1]

Forms

tredici (invariable)[1][2] Old and dialect forms include Old Italian tredese, Old Italian tredexe, Old Italian treddeci and Old Italian tridici.[3] A 14th-century Bergamasque lauda has tredes.[4]

Etymology

It is inherited from Latin trēdecim (“thirteen”), a compound of trēs (“three”) and decem (“ten”).[5][6][2][1] The same word is Dalmatian tretko, Friulian tredis, French treize, Occitan treze, Catalan tretze, Spanish trece and Portuguese treze.[6][7] In French, Occitan and Catalan it also names the baker's dozen.[7]

The other Indo-European languages have parallel but not identical forms, such as Ancient Greek τρεισκαίδεκα (treiskaídeka) and German dreizehn.[8] De Vaan explains the ⟨i⟩ of Latin ⟨-decim⟩ after the ordinals in ⟨-decimus⟩, not by metathesis.[9]

Earliest recorded meaning

The first record is a Florentine bankers' book of 1211.[5][6][3] Dante writes in the Convivio of Mary as a girl of thirteen.[4]

Semantic evolution

Old Italian tredici buoni uomini were the representatives of the districts of Rome who often ran the city government in the 13th and 14th centuries.[3][10] In the cabala and the book of dreams of the lottery thirteen stands for death, so that tredici became a jargon word for death in the 18th century, and popular belief held the number to be of ill omen; others count it lucky.[11][12][2]

As a noun, il tredici is dated from Fagiuoli, before 1742, and le tredici for one in the afternoon from 1939–40.[5] Fare tredici, winning the top prize in the football pools by predicting thirteen results, is recorded from 1951 and came to mean any great stroke of luck.[5][13][14]

Timeline

  • 1211 – Tredici appears in a Florentine bankers' book.[5][3]
  • Before 1742 – Fagiuoli uses il tredici for the number, linked with death.[5][11]
  • 1838 – Tredicenne is recorded.[6]
  • 1939–1940 – Le tredici “one o'clock in the afternoon” is recorded.[5]
  • 1951 – Fare un tredici in the football pools is recorded.[5]
  • 1955 – Tredicista, a winner of the pools, is recorded.[6]

Meanings

Numeral

  1. thirteen: ten plus three, written 13 or XIII.[2][13][15]
  2. After a noun, used as an ordinal: thirteenth: capitolo tredici.[2][13]

Noun

  1. The number thirteen and its sign, held by some to be unlucky and by others lucky.[2][13][16]
  2. The thirteenth day of a month, or the year '13 of a century.[2][13]
  3. fare tredici: to win the top prize in the football pools;[2][13][14] (figurative) to have a great stroke of luck.[2][13][14]
  4. le tredici (feminine plural): one o'clock in the afternoon.[2][16]

Word family

  • tredicesimo
  • tredicesima
  • tredicenne
  • tredicina
  • tredicista

Usage notes

An 18th-century jargon tredici meant “death”, from the number that stands for death in the book of dreams.[11][12]

References

  1. ^ a b c Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ 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
  3. ^ a b c d Tesoro della Lingua Italiana delle Origini (1997–), Opera del Vocabolario Italiano, CNR, Firenze; tlio.ovi.cnr.it
  4. ^ a b Battaglia, Salvatore; Bàrberi Squarotti, Giorgio (1961–2002), Grande dizionario della lingua italiana, 21 vols., Torino: UTET; digital ed. Accademia della Crusca, p. 21, 297
  5. ^ a b c d e f g h Cortelazzo, Manlio; Zolli, Paolo (1999), Dizionario etimologico della lingua italiana, 2nd ed. by Manlio Cortelazzo and Michele A. Cortelazzo, Bologna: Zanichelli
  6. ^ a b c d e Nocentini, Alberto; Parenti, Alessandro (2010), l'Etimologico: vocabolario della lingua italiana, Firenze: Le Monnier
  7. ^ a b Meyer-Lübke, Wilhelm (1935), Romanisches etymologisches Wörterbuch, 3rd ed., Heidelberg: Winter
  8. ^ Devoto, Giacomo (1968), Avviamento alla etimologia italiana: dizionario etimologico, 2nd ed., Firenze: Le Monnier
  9. ^ de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
  10. ^ Duro, Aldo (ed.) (1986–1994), Vocabolario della lingua italiana, Roma: Istituto della Enciclopedia Italiana; online ed. treccani.it/vocabolario (2008 copy)
  11. ^ a b c Battisti, Carlo; Alessio, Giovanni (1950–1957), Dizionario etimologico italiano, 5 vols., Firenze: Barbèra (reprint 1975), p. 3880
  12. ^ a b Tommaseo, Niccolò; Bellini, Bernardo (1861–1879), Dizionario della lingua italiana, 4 vols., Torino: UTET
  13. ^ 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
  14. ^ a b c Gabrielli, Aldo (2020), Grande dizionario italiano, digital ed., Milano: Hoepli
  15. ^ Zingarelli, Nicola (2009), Lo Zingarelli 2010: vocabolario della lingua italiana, Bologna: Zanichelli
  16. ^ a b Vocabolario della lingua italiana Treccani (2011), Roma: Istituto della Enciclopedia Italiana

Related etymologies

Cite this entry

“Tredici.” Etymologically, 10 Nov. 2026, etymologically.com/it/tredici. Accessed 11 Nov. 2026.

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