dorso

Forms

dorso m (plural dorsi)^[1]

Etymology

It is borrowed from Latin dorsum (“back”), a learned word.^[2][3][1] The inherited outcome of the same Latin noun is dosso, from the variant dossum.^[4][5][1] That form gave the Romance words for the back: Romanian dos, Dalmatian duas, Romansh dös, French dos, Occitan dos and Catalan dos.^[5] Spanish dorso is learned like the Italian word.^[6]

The Romans themselves connected the noun with deorsum (“downwards”), as Paul the Deacon's epitome of Festus does, and DELI, Nocentini and Devoto repeat this explanation.^[7][6][8][9] De Vaan finds it phonologically sound: a compound of dē- (“away from”) and versus (“turned towards”) would give the adverb, and the noun meant “turned away”, the part the viewer does not face; the variant with /ss/ is a late assimilation.^[9] The GDLI instead calls the explanations of Festus and Isidore popular etymologies.^[3] Wiktionary sets up Proto-Italic *dorsom and calls a link with Old Irish druimm (“back, ridge”) unclear, while the OLD gives the Irish word and Welsh trum as possible cognates.^[1][10] The same Latin adverb is the source of giù.^[6]

Earliest recorded meaning

The TLIO's first record is in the Florentine translation of Seneca's letters, perhaps before 1325, where the word means the back of an animal, mostly a horse or other quadruped; it soon also meant a man's back.^[11] DELI dates the sense “back of the body” to a Bible translation of the late 14th century, which has Percuoti e batti i dorsi dei suoi nemici “strike and beat the backs of his enemies”.^[7][3]

Semantic evolution

Ariosto used the word for the top of a mountain (1516), and in the 18th century it came to mean the convex part of an organ (1785–88) and the spine of a book (1797).^[7] Old phrases are dare i dorsi “to flee” and piegare il dorso “to obey, submit”.^[12] The 20th century added the upper side of a wing (1936) and, in swimming, nuoto sul dorso (1931), shortened to dorso “backstroke” by 1956.^[7] In newspapers a dorso is a section of the same format added to the paper, such as a regional insert.^[13]

Derivatives include dorsale “of the back” (1681), as a feminine noun a long mountain range (1925), dorsista “backstroke swimmer” (1931) and dorsoventrale (1906).^[7]

Timeline

• Before 1325? – First record, in the Florentine translation of Seneca's letters.^[11]
• Late 14th century – A Bible translation uses it for the human back.^[7]
• 1516 – Ariosto uses it for the top of a mountain.^[7]
• 1681 – Dorsale is first recorded.^[7]
• 1797 – The sense “spine of a book” is recorded.^[7]
• 1931 – Nuoto sul dorso and dorsista appear in Panzini's dictionary.^[7]
• 1936 – The sense “upper side of a wing” is recorded.^[7]
• 1956 – Dorso alone means the backstroke.^[7]

Meanings

Noun

1. (anatomy) The back of the human body, between the nape and the lumbar region: Il medico gli ha visitato il dorso.^[14][15][13]
2. The back of an animal, especially a pack animal, where the saddle sits: a dorso di mulo “on muleback”.^[14][15][16]
3. The back or upper side of something: the back of the hand, the back of a knife blade.^[14][15][17]
4. The spine of a book.^[14][13][17]
5. (botany) The dorsal face of an organ.^[14][15]
6. (swimming) The backstroke.^[14][15][16]
7. (aeronautics) The upper surface of a wing.^[14][13]
8. (photography) The back of a camera, holding the plate or film.^[14][15][13]
9. (geography) The ridge of a mountain between two slopes.^[14][17][13]
10. (journalism) A section of the same format added to a newspaper.^[13]

Word family

• dorsale
• dorsista
• dorsoventrale
• dorsalgia
• dorsetto

Related words

• dosso
• giù
• Latin dorsum

Usage notes

Both an open and a close o are heard in the stressed syllable.^[16][13][1] Figurative phrases are piegare il dorso “to submit”, mostrare il dorso “to flee” and spianare il dorso a qualcuno “to give someone a beating”.^[15][13][17]

References

1. ^ a b c d e f Wiktionary, the free dictionary, https://en.wiktionary.org
2. ^ Battisti, Carlo; Alessio, Giovanni (1950–1957), Dizionario etimologico italiano, 5 vols., Firenze: Barbèra (reprint 1975), p. 1386
3. ^ a b c Battaglia, Salvatore; Bàrberi Squarotti, Giorgio (1961–2002), Grande dizionario della lingua italiana, 21 vols., Torino: UTET; digital ed. Accademia della Crusca
4. ^ Prati, Angelico (1951), Vocabolario etimologico italiano, Milano: Garzanti, p. 391
5. ^ a b Meyer-Lübke, Wilhelm (1935), Romanisches etymologisches Wörterbuch, 3rd ed., Heidelberg: Winter
6. ^ a b c Nocentini, Alberto; Parenti, Alessandro (2010), l'Etimologico: vocabolario della lingua italiana, Firenze: Le Monnier
7. ^ a b c d e f g h i j k l Cortelazzo, Manlio; Zolli, Paolo (1999), Dizionario etimologico della lingua italiana, 2nd ed. by Manlio Cortelazzo and Michele A. Cortelazzo, Bologna: Zanichelli
8. ^ Devoto, Giacomo (1968), Avviamento alla etimologia italiana: dizionario etimologico, 2nd ed., Firenze: Le Monnier
9. ^ 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
10. ^ Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
11. ^ a b Tesoro della Lingua Italiana delle Origini (1997–), Opera del Vocabolario Italiano, CNR, Firenze; tlio.ovi.cnr.it
12. ^ Tommaseo, Niccolò; Bellini, Bernardo (1861–1879), Dizionario della lingua italiana, 4 vols., Torino: UTET
13. ^ a b c d e f g h i Zingarelli, Nicola (2009), Lo Zingarelli 2010: vocabolario della lingua italiana, Bologna: Zanichelli
14. ^ a b c d e f g h i De Mauro, Tullio (ed.) (2003), Grande dizionario italiano dell'uso, CD-ROM version 2.0, Torino: UTET
15. ^ 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
16. ^ a b c Sabatini, Francesco; Coletti, Vittorio; Manfredini, Manuela (2026), Dizionario italiano Sabatini Coletti, digital ed., Milano: Sansoni / Rizzoli Larousse
17. ^ a b c d Vocabolario della lingua italiana Treccani (2011), Roma: Istituto della Enciclopedia Italiana