Etymologically

Etymology and origin of the Italian word fianco

Confidence
Established
Formation
Borrowing
First attested
before 1274, Brunetto Latini
Borrowed from
Old French flanc
Ultimate origin
Frankish *hlanka

Pronunciation

Forms

fianco m (plural fianchi)[1] Old forms include Old Italian flanco, northern Old Italian flancho and southern Old Italian fiancu.[2]

Etymology

It is borrowed from Old French flanc (“flank, side”), which is from Frankish *hlanka (“hip, bend”).[3][4][5][1] Rohlfs thought the word reached Tuscan through northern Italy.[3] The Frankish word is related to Old High German hlanca (“side, loin”), German Gelenk (“joint”) and English link, all with the basic idea of bending.[4][6] The Old French word, recorded in 1080, also passed into Occitan flanc, Spanish flanco and Portuguese flanco.[4][5]

Older scholars proposed Greek or Latin sources, among them Latin flaccus (“flabby”).[7]

Earliest recorded meaning

The TLIO's first record is Brunetto Latini's Tesoretto (before 1274); DELI dates the word to Bono Giamboni (before 1292), for the side of the body between the lowest rib and the hip.[2][3] Dante (before 1321) also has the general sense “side”.[3]

Semantic evolution

In Dante's Ugolino episode the dogs' teeth tear the flanks of the father and sons; in the TLIO's Old Italian texts the word also means the whole body, the hip, the internal organs on one side, a river bank and a slope.[8][2] Petrarch's antiquo fianco is the poet's aged body.[5][9]

From the 18th century it was a military term for the side of an army or of a fortification, opposed to the front.[5][10] German borrowed Flanke as a military word in 1616.[10] Derivatives include fiancata (before 1484, Pulci), first a spur-kick to a horse's flank and later a ship's broadside, and fiancheggiare (before 1555), to march beside and to support;[3] fiancheggiatore (1849) became a political supporter in Gobetti.[3]

Timeline

  • 1080 – Old French flanc is recorded.[5]
  • Before 1274 – Brunetto Latini's Tesoretto has fianco.[2]
  • Before 1292 – Bono Giamboni uses it for the side of the body.[3]
  • Before 1321 – Dante uses it for “side”.[3]
  • Before 1484 – Pulci has fiancata.[3]
  • Before 1555 – Fiancheggiare “to march beside” is recorded.[3]
  • 1616 – German Flanke is borrowed as a military word.[10]
  • 1798 – Fiancata is recorded for a ship's broadside.[3]
  • 1855 – Affiancare is recorded.[4]

Meanings

Noun

  1. flank, side: the side of the human body between the lowest ribs and the hip; in the plural, the hips: Dorme sempre sul fianco sinistro.[5][11][9][1]
  2. (literary) The whole body.[5][9][1]
  3. The side of an animal's body between the ribs and the hind legs.[5][12]
  4. The side of a thing: il fianco della nave; the slope of a mountain.[5][11][13][1]
  5. (military) The side of an army or of a fortification.[5][11]
  6. (heraldry) Each side of a shield.[5][13]

Word family

  • fiancata
  • fiancheggiare
  • fiancheggiatore
  • affiancare
  • sfiancare
  • fianchetto
  • fiancare
  • rinfiancare
  • French flanc
  • English flank

Usage notes

Common phrases include a fianco and di fianco a (beside), fianco a fianco (side by side), prestare il fianco (to lay oneself open, to criticism for example) and fianco destr! (right face!).[5][11][13]

References

  1. ^ a b c d e f 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 f g h i j k Cortelazzo, Manlio; Zolli, Paolo (1999), Dizionario etimologico della lingua italiana, 2nd ed. by Manlio Cortelazzo and Michele A. Cortelazzo, Bologna: Zanichelli
  4. ^ a b c d Nocentini, Alberto; Parenti, Alessandro (2010), l'Etimologico: vocabolario della lingua italiana, Firenze: Le Monnier
  5. ^ a b c d e f g h i j k l De Mauro, Tullio (ed.) (2003), Grande dizionario italiano dell'uso, CD-ROM version 2.0, Torino: UTET
  6. ^ Zaccaria, Enrico (1901), L'elemento germanico nella lingua italiana: lessico con appendice e prospetto cronologico, Bologna: Treves
  7. ^ Tommaseo, Niccolò; Bellini, Bernardo (1861–1879), Dizionario della lingua italiana, 4 vols., Torino: UTET
  8. ^ Battaglia, Salvatore; Bàrberi Squarotti, Giorgio (1961–2002), Grande dizionario della lingua italiana, 21 vols., Torino: UTET; digital ed. Accademia della Crusca
  9. ^ a b c Sabatini, Francesco; Coletti, Vittorio; Manfredini, Manuela (2026), Dizionario italiano Sabatini Coletti, digital ed., Milano: Sansoni / Rizzoli Larousse
  10. ^ a b c Battisti, Carlo; Alessio, Giovanni (1950–1957), Dizionario etimologico italiano, 5 vols., Firenze: Barbèra (reprint 1975), p. 1630
  11. ^ a b c d Devoto, Giacomo; Oli, Gian Carlo; Serianni, Luca; Trifone, Maurizio (2026), Nuovo Devoto–Oli: il vocabolario dell'italiano contemporaneo, digital ed., Milano: Le Monnier
  12. ^ Vocabolario della lingua italiana Treccani (2011), Roma: Istituto della Enciclopedia Italiana
  13. ^ a b c Zingarelli, Nicola (2009), Lo Zingarelli 2010: vocabolario della lingua italiana, Bologna: Zanichelli

Related etymologies

Cite this entry

“Fianco.” Etymologically, 21 Oct. 2026, etymologically.com/it/fianco. Accessed 22 Oct. 2026.

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