Etymologically

Etymology and origin of the Italian word tesoro

Confidence
Established
Formation
Inherited
First attested
before 1294, Brunetto Latini
Inherited from
Latin thesaurus
Ultimate origin
Ancient Greek θησαυρός
Etymology tree
inherited borrowed derived
Ancient Greek θησαυρός
Latin thesaurus
Italian tesoro
English thesaurus
French trésor

Pronunciation

  • /teˈzɔ.ro/[1]

Forms

tesoro m (plural tesori)[1]

Etymology

It is inherited from Latin thēsaurus (“treasure; storehouse”),[2][3][4][1] borrowed from Ancient Greek θησαυρός (thēsaurós, “store, storehouse; treasure”).[2][3][5] DEI calls it a semi-learned word.[6] In it the Latin diphthong /au/ became /o/, while the latinizing tesauro keeps it.[7] The Latin word also gave French trésor, Occitan tezaur, Catalan tresor, Spanish tesoro and Portuguese tesouro,[3][8] and was borrowed as Old High German treso.[8] The /r/ after the first consonant of the French and Catalan forms (also in Old Venetian and Old Spanish ⟨tresoro⟩) anticipates the later /r/, according to Niedermann, quoted by Meyer-Lübke, while Körting thinks of popular etymology.[8][9] Latin also wrote ⟨thensaurus⟩.[5]

The origin of the Greek word is obscure, perhaps a loan from another language, according to DELI.[2] Nocentini derives it from the root of Ancient Greek τίθημι (títhēmi, “to put, place”), and DEI calls it a relic of the pre-Greek substrate.[3][6]

Earliest recorded meaning

DELI's first record is in Brunetto Latini, who died in 1294, for a large quantity of money.[2][4] The sense “precious things hidden or buried, whose owner cannot be proved” is in Dante's Convivio (1304–1308), and in Giordano da Pisa in 1305 beside tesauro.[2] GDLI quotes Dante: “lo tesoro è nascosto” (the treasure is hidden).[10]

Semantic evolution

Figurative senses came early: Dante already uses the word for a dearly loved person or thing (1293–1294), for spiritual riches (before 1321) and for an encyclopaedic work (1300–1313), the genre of Brunetto Latini's Tresor and Tesoretto.[2] Petrarch calls a person his treasure.[6][11] The public treasury is tesoro from about 1350; in 1831 the purist Lissoni rejected that sense as a Gallicism, and Viani defended it with many examples.[2] Natural riches are tesori in Tasso (1581), and works of art in Tommaseo–Bellini (1879).[2]

Tesoriere (end of the 13th century, Novellino) and tesoreria depend on French trésorier (1170) and trésorerie, from the Late Latin thesaurarius “keeper of the treasure” used by Isidore.[2] In modern Italy the word names the state's funds and, capitalized, the ministry that managed them, as in buono del Tesoro “Treasury bond”; the game caccia al tesoro is a treasure hunt.[12][4][13]

Timeline

  • 1293–1294 – Dante uses tesoro for a much loved person or thing.[2]
  • Before 1294 – Brunetto Latini uses tesoro for a great quantity of money.[2][4]
  • End of the 13th century – Tesoriere appears in the Novellino.[2]
  • 1300–1313 – Dante uses the word for an encyclopaedic work.[2]
  • 1304–1308 – Dante uses tesoro for hidden valuables.[2]
  • c. 1350 – Tesoro “public treasury” is recorded.[2]
  • 1581 – Tasso uses the word for natural riches.[2]
  • 1831 – Lissoni rejects tesoro “treasury” as a Gallicism.[2]
  • 1879 – Tommaseo–Bellini record tesoro for a precious work of art.[2]

Meanings

Noun

  1. A treasure, a large store of money, jewels and precious objects, kept with care or hidden: I ragazzi cercavano un tesoro sepolto nel giardino.[4][7][12]
  2. (by extension) A great deal of money: Quella macchina gli è costata un tesoro.[4][7]
  3. (law) A valuable movable object, hidden or buried, whose owner cannot be proved.[4][12][13]
  4. The relics, sacred furnishings and works of art belonging to a church or shrine, and the room where they are kept.[4][7][14]
  5. (often capitalized) The public treasury; the ministry in charge of it.[4][7][1]
  6. (figurative) Something of great value: natural resources, a work of art, a spiritual gift.[12][7][15]
  7. (figurative) A much loved person, or a very kind and helpful one, (colloquial) as a term of endearment, darling: Tesoro, hai visto le mie chiavi?[12][15][1]
  8. (archaeology) In ancient Greece, a treasury building of a sanctuary; in the Mycenaean age, a domed tomb.[4][15]

Word family

  • tesoriere
  • tesoreria
  • tesoretto
  • tesoreggiare
  • tesaurizzare

Usage notes

Fare tesoro di qualcosa means to value something and keep it for later use, especially advice or experience.[14][12][13] Tesauro is the old and literary form.[14][7]

References

  1. ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j k l m n o p q r 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 Nocentini, Alberto; Parenti, Alessandro (2010), l'Etimologico: vocabolario della lingua italiana, Firenze: Le Monnier
  4. ^ 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
  5. ^ a b Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  6. ^ a b c Battisti, Carlo; Alessio, Giovanni (1950–1957), Dizionario etimologico italiano, 5 vols., Firenze: Barbèra (reprint 1975), p. 3771
  7. ^ a b c d e f g Sabatini, Francesco; Coletti, Vittorio; Manfredini, Manuela (2026), Dizionario italiano Sabatini Coletti, digital ed., Milano: Sansoni / Rizzoli Larousse
  8. ^ a b c Meyer-Lübke, Wilhelm (1935), Romanisches etymologisches Wörterbuch, 3rd ed., Heidelberg: Winter
  9. ^ Körting, Gustav (1907), Lateinisch-romanisches Wörterbuch: etymologisches Wörterbuch der romanischen Hauptsprachen, 3rd ed., Paderborn: Schöningh
  10. ^ Battaglia, Salvatore; Bàrberi Squarotti, Giorgio (1961–2002), Grande dizionario della lingua italiana, 21 vols., Torino: UTET; digital ed. Accademia della Crusca
  11. ^ Prati, Angelico (1951), Vocabolario etimologico italiano, Milano: Garzanti, p. 989
  12. ^ a b c d e f 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 c Devoto, Giacomo; Oli, Gian Carlo; Serianni, Luca; Trifone, Maurizio (2026), Nuovo Devoto–Oli: il vocabolario dell'italiano contemporaneo, digital ed., Milano: Le Monnier
  15. ^ a b c Gabrielli, Aldo (2020), Grande dizionario italiano, digital ed., Milano: Hoepli

Related etymologies

Cite this entry

“Tesoro.” Etymologically, 21 Oct. 2026, etymologically.com/it/tesoro. Accessed 22 Oct. 2026.

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