Etymologically

Etymology and origin of the Italian word cacio

Confidence
Established
Formation
Inherited
First attested
1150–1175 Venetian document (Ricordacione Cornaro), form caso More words from the 12th century
Inherited from
Latin caseus
Ultimate origin
Latin cāseus

Pronunciation

  • /ˈka.t͡ʃo/, [ˈkaːʃo][1]

Forms

cacio m (plural caci)[1] Old forms include Old Italian cascio, caso, caxo and casciu.[2][3] Cascio was used by writers until the 16th century.[4][5]

Etymology

It is inherited from Latin cāseus (“cheese”).[6][7][8][1]

The Latin word lives on in Spanish queso, Portuguese queijo, Sardinian casu and Romanian caș, and in Dalmatian kis.[7][9][3] In France and Catalonia it was replaced by Medieval Latin formaticum, whence formaggio.[3] Early on it was borrowed into Germanic and Celtic: Old High German chāsi, German Käse, Old English cēse, English cheese and Old Irish cáise.[7][9]

The origin of the Latin word is uncertain.[6][10] It has often been traced to Proto-Indo-European *kwath₂- (“to boil, ferment”) and compared with the Slavic words for “leaven” and “sour milk”, but a /w/ should not have disappeared in Latin, and de Vaan finds no proposal free of weak assumptions.[7][10][1] A loan from a neighbouring Italic language such as Sabine has also been suggested.[1]

Earliest recorded meaning

The first record is the Venetian form caso in a document of the third quarter of the 12th century, the Ricordacione Cornaro.[2][3] In Tuscany cascio is in the Pisan account books of 1299 and cacio in Domenico Cavalca, before 1342; the sense throughout is “cheese”.[6][8]

Semantic evolution

Old Italian had many phrases with the word: cacio parmigiano, cacio di marzo, bestia da cacio for a sheep or goat kept for cheese, and sayings such as mangiare cacio e pane “to live frugally” and mettere le zanne nel cacio “to act greedily”.[2] Boccaccio has come il pane e 'l cacio in the Decameron.[11][12]

The word belongs to Tuscany and central and southern Italy, while the north uses formaggio.[6] Treccani notes that it is popular in Tuscany and Umbria and sounds literary in the north.[13] In the 19th century Tommaseo distinguished cacio as the general word from formaggio, the cheese as shaped in its mould.[12]

Derivatives include caciola (14th century), caciotta (1846) and caciocavallo, a southern hard cheese that reached the written language in the 14th century; why it is named after a horse is unclear, and one explanation is that the cheeses are hung in pairs astride a pole.[6][7]

Timeline

  • 1150–1175 – Venetian caso is recorded in the Ricordacione Cornaro.[2][3]
  • 1299 – Pisan cascio is recorded in account books.[6][8]
  • 1311 – Caciocavallo is recorded at Naples in the Angevin registers.[6]
  • Before 1342 – Domenico Cavalca uses cacio.[6]
  • 1846 – Caciotta is recorded.[6][7]

Meanings

Noun

  1. (Tuscan) cheese: un pezzo di cacio pecorino.[8][5][13]
  2. A whole cheese, one round of it.[8][14][13]

Word family

  • caciocavallo
  • caciola
  • caciotta
  • caciaia
  • caciaio
  • caciaiolo
  • incaciare

Usage notes

Common idioms are come il cacio sui maccheroni “just at the right moment”, essere pane e cacio “to be close friends” and alto quanto un soldo di cacio “knee-high”, said of a small child or a short person.[8][5][13] Tommaseo already records the last as said to a child who talks above his age.[12]

References

  1. ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d Tesoro della Lingua Italiana delle Origini (1997–), Opera del Vocabolario Italiano, CNR, Firenze; tlio.ovi.cnr.it
  3. ^ a b c d e Pfister, Max; Schweickard, Wolfgang; Prifti, Elton (eds.) (1979–), Lessico Etimologico Italiano, Wiesbaden: Reichert; online at lei-digitale.it, p. 12, 1041
  4. ^ Prati, Angelico (1951), Vocabolario etimologico italiano, Milano: Garzanti
  5. ^ a b c Zingarelli, Nicola (2009), Lo Zingarelli 2010: vocabolario della lingua italiana, Bologna: Zanichelli
  6. ^ 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
  7. ^ a b c d e f Nocentini, Alberto; Parenti, Alessandro (2010), l'Etimologico: vocabolario della lingua italiana, Firenze: Le Monnier
  8. ^ a b c d e f De Mauro, Tullio (ed.) (2003), Grande dizionario italiano dell'uso, CD-ROM version 2.0, Torino: UTET
  9. ^ a b Meyer-Lübke, Wilhelm (1935), Romanisches etymologisches Wörterbuch, 3rd ed., Heidelberg: Winter
  10. ^ 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
  11. ^ Battaglia, Salvatore; Bàrberi Squarotti, Giorgio (1961–2002), Grande dizionario della lingua italiana, 21 vols., Torino: UTET; digital ed. Accademia della Crusca
  12. ^ a b c Tommaseo, Niccolò; Bellini, Bernardo (1861–1879), Dizionario della lingua italiana, 4 vols., Torino: UTET
  13. ^ a b c d Duro, Aldo (ed.) (1986–1994), Vocabolario della lingua italiana, Roma: Istituto della Enciclopedia Italiana; online ed. treccani.it/vocabolario (2008 copy)
  14. ^ Devoto, Giacomo; Oli, Gian Carlo; Serianni, Luca; Trifone, Maurizio (2026), Nuovo Devoto–Oli: il vocabolario dell'italiano contemporaneo, digital ed., Milano: Le Monnier

Related etymologies

Cite this entry

“Cacio.” Etymologically, 10 Nov. 2026, etymologically.com/it/cacio. Accessed 10 Nov. 2026.

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