Etymologically

Etymology and origin of the Italian word cielo

Confidence
Established
Formation
Inherited
First attested
late 12th century, Ritmo cassinese
Inherited from
Latin caelum
Ultimate origin
Latin caelum
Etymology tree
inherited borrowed derived
Latin caelum
French ciel
Italian cielo
Derived words
Latin caelicola ← caelum

Pronunciation

  • /ˈt͡ʃɛ.lo/[1]

Forms

cielo m (plural cieli)[1] Old forms include Old Italian celu, Old Italian celo and, in the north, Old Italian cel and Old Italian ciel.[2][3]

Etymology

It is inherited from Latin caelum (“sky, heaven”), whose stressed /ae/ became an open /ɛ/ and then, in an open syllable, the Tuscan diphthong /jɛ/.[2][4][5][1] The same word is found in every Romance language: French ciel, Occitan cel, Catalan cel, Spanish cielo, Portuguese céu, Sardinian chelu, Dalmatian sil and Romanian cer.[4][6][7] The plural used by Christian writers follows Ecclesiastical Latin caelī, a calque of Ancient Greek οὐρανοί (ouranoí), which in turn follows a Hebrew plural.[8]

The Latin word is of uncertain origin.[2][9] Nocentini and Devoto derive it from Latin caedō (“to cut”), as a space marked out for watching the flight of birds and the movement of the stars.[4][10] DEI thinks the link with Oscan kaíla is better explained as a relic of a Mediterranean substrate.[8] De Vaan, following Schrijver, connects it with Welsh coel (“omen”) and with Proto-Indo-European *keh₂i-lo- (“whole”), the source of Old Church Slavonic цѣлъ (cělŭ, “whole”).[11][1]

Earliest recorded meaning

The oldest record DELI gives is celu for the seat of God and the saints in the Ritmo cassinese at the end of the 12th century.[2] The TLIO's first record is in the Venetian Proverbia que dicuntur.[3] Saint Francis's Canticle (1224) praises God for the moon and stars: “in celu l'ài formate clarite et preziose et belle” (in the sky you formed them, bright, precious and fair).[2][12][9] The modern form cielo is in Guittone d'Arezzo (before 1294).[2]

Semantic evolution

Iacopone da Todi (before 1306) uses the word for each of the heavenly spheres of the Ptolemaic system, Dante for the sky over a given region, and Boccaccio (about 1336) for the ceiling of a room.[2] The LEI lists further senses in Italian and the dialects: the canopy of a bed, the roof of a carriage, the vault of an oven and the palate.[6][7] Albero del cielo “tree of heaven”, the ailanthus, translates a Malay name.[8]

Many phrases use the word: toccare il cielo con un dito “to be overjoyed”, apriti cielo! of a violent reaction, essere al settimo cielo “to be in seventh heaven” and a cielo aperto “in the open”.[13][14][12] The weather proverb cielo a pecorelle, acqua a catinelle says that a mackerel sky brings rain.[13][14]

Timeline

  • Late 12th century – Celu “heaven” appears in the Ritmo cassinese.[2]
  • 1224 – Saint Francis uses celu for the sky.[2][12]
  • Before 1294 – Guittone d'Arezzo uses the form cielo.[2]
  • Before 1306 – Iacopone da Todi uses it for a heavenly sphere.[2]
  • About 1336 – Boccaccio uses it for the ceiling of a room.[2]

Meanings

Noun

  1. The sky, the vault above the earth in which the stars seem to move: Stanotte il cielo è pieno di stelle.[12][15][5][1]
  2. The sky as to the weather: cielo sereno, cielo coperto.[12][13][14]
  3. The sky or airspace over a place: il cielo di Napoli.[12][5][14]
  4. heaven, the dwelling of God and the blessed: il regno dei cieli.[12][5][1]
  5. God, Providence, and as an exclamation of surprise or fear: Santo cielo, che cosa è successo?[12][5]
  6. (astronomy, historical) In the Ptolemaic system, each of the heavenly spheres.[5][2]
  7. The top or inner roof of something: the ceiling of a room, the roof of a car or tunnel.[5][16]

Word family

  • grattacielo
  • sopraccielo

Usage notes

Né in cielo né in terra says that something is absurd or impossible, and muovere cielo e terra means “to move heaven and earth”.[13][16][1]

References

  1. ^ a b c d e f g Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j k l m Cortelazzo, Manlio; Zolli, Paolo (1999), Dizionario etimologico della lingua italiana, 2nd ed. by Manlio Cortelazzo and Michele A. Cortelazzo, Bologna: Zanichelli
  3. ^ a b Tesoro della Lingua Italiana delle Origini (1997–), Opera del Vocabolario Italiano, CNR, Firenze; tlio.ovi.cnr.it
  4. ^ a b c Nocentini, Alberto; Parenti, Alessandro (2010), l'Etimologico: vocabolario della lingua italiana, Firenze: Le Monnier
  5. ^ a b c d e f g Sabatini, Francesco; Coletti, Vittorio; Manfredini, Manuela (2026), Dizionario italiano Sabatini Coletti, digital ed., Milano: Sansoni / Rizzoli Larousse
  6. ^ a b Pfister, Max; Schweickard, Wolfgang; Prifti, Elton (eds.) (1979–), Lessico Etimologico Italiano, Wiesbaden: Reichert; online at lei-digitale.it, p. 9, 613
  7. ^ a b Meyer-Lübke, Wilhelm (1935), Romanisches etymologisches Wörterbuch, 3rd ed., Heidelberg: Winter
  8. ^ a b c Battisti, Carlo; Alessio, Giovanni (1950–1957), Dizionario etimologico italiano, 5 vols., Firenze: Barbèra (reprint 1975), p. 932
  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. ^ Devoto, Giacomo (1968), Avviamento alla etimologia italiana: dizionario etimologico, 2nd ed., Firenze: Le Monnier
  11. ^ de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
  12. ^ 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
  13. ^ a b c d Zingarelli, Nicola (2009), Lo Zingarelli 2010: vocabolario della lingua italiana, Bologna: Zanichelli
  14. ^ a b c d Vocabolario della lingua italiana Treccani (2011), Roma: Istituto della Enciclopedia Italiana
  15. ^ Devoto, Giacomo; Oli, Gian Carlo; Serianni, Luca; Trifone, Maurizio (2026), Nuovo Devoto–Oli: il vocabolario dell'italiano contemporaneo, digital ed., Milano: Le Monnier
  16. ^ a b Gabrielli, Aldo (2020), Grande dizionario italiano, digital ed., Milano: Hoepli

Related etymologies

  • no · also from Latin
  • cosa · also from Latin
  • a · also from Latin
  • mio · also from Latin
  • uno · also from Latin
  • si · also from Latin
  • sapere · also from Latin
  • fare · also from Latin
Cite this entry

“Cielo.” Etymologically, 21 Oct. 2026, etymologically.com/it/cielo. Accessed 22 Oct. 2026.

Last edited on . ·