Etymologically

Etymology and origin of the Italian word prospero

Confidence
Established
Formation
Borrowing
First attested
1200s Storia de Troia e de Roma More words from the 12th century
Borrowed from
Latin prosperus
Ultimate origin
Latin prosperus
Etymology tree
inherited borrowed derived
Latin prosperus
Italian prospero
Spanish próspero
From the same root
Latin prosperē ← prosperus
Latin prosperitās ← prosperus
Latin prosperō ← prosperus

Pronunciation

  • /ˈprɔs.pe.ro/[1]

Forms

prospero (feminine prospera, masculine plural prosperi, feminine plural prospere)[1]

Etymology

It is borrowed from Latin prosperus (“favourable, fortunate”), a learned word, also written prosper, borrowed with its derivatives prosperāre and prosperitās.[2][3][4][5] The same Latin word gave French prospère, in Old French from the 12th century, and Spanish próspero.[3][6]

The Romans explained the adjective by a phrase meaning “according to hope”, but the length of the vowel is against it and it is taken as a folk etymology.[3][7][8] De Vaan analyses the word as prō and Proto-Indo-European *sph₁rós (“thriving”), or as a derivative of a compound verb meaning “to thrive”, from the root Proto-Indo-European *speh₁- that also gave Latin spēs (“hope”).[9][1] He compares Hittite, Sanskrit and Old Church Slavonic words for being full, getting fat or succeeding.[9][3]

Earliest recorded meaning

DELI's first record is in the 13th-century Storia de Troia e de Roma, which says that everything “would have gone favourably for Jugurtha” (onne cosa fora stata prospera a Iugurta) but for the hunger his army had suffered.[2][8]

Semantic evolution

In Old Italian the word mostly meant “favourable”: Boccaccio's travellers “having a favourable wind” (avendo prospero vento) soon reached Sicily, and prospero was paired with avverso for good and bad fortune.[10][4][8] Old forms include pròspo and pròspro.[8]

The sense “thriving, flourishing”, of trade, a business or a country, grew out of this and is now the main one.[4][5][11] DELI records prospero for “buxom, healthy-looking” before 1530, a sense now usually given by prosperoso.[2][11]

Timeline

  • 13th century – The Storia de Troia e de Roma has the first record.[2]
  • 1268 – Zingarelli's date for the first record.[12]
  • Before 1306 – Iacopone uses prosperitate.[2]
  • About 1336 – Boccaccio uses prosperare.[2]
  • Before 1530 – Prospero is used for “buxom, healthy”.[2]

Meanings

Adjective

  1. thriving, flourishing; going very well and bringing wealth: una prospera azienda agricola.[4][5][12][1]
  2. Enjoying wealth and well-being, prosperous: una regione prospera.[4][5][13]
  3. Favourable, propitious, lucky; of wind, fair.[4][5][12]
  4. (literary) Healthy and well-fed, prosperoso.[4][12][11]

Word family

  • prosperamente
  • prosperevole

Usage notes

Prospero is also a man's name.[1] In Rome and the south prospero is a separate, regional noun for a match (fiammifero): a spoken *pospŏrum from fosforo, reshaped after the name Prospero, recorded in Migliorini's Lingua e cultura in 1948 and used by Gadda.[3][4][8][14]

References

  1. ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g 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 e Nocentini, Alberto; Parenti, Alessandro (2010), l'Etimologico: vocabolario della lingua italiana, Firenze: Le Monnier
  4. ^ 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
  5. ^ a b c d e Devoto, Giacomo; Oli, Gian Carlo; Serianni, Luca; Trifone, Maurizio (2026), Nuovo Devoto–Oli: il vocabolario dell'italiano contemporaneo, digital ed., Milano: Le Monnier
  6. ^ Battisti, Carlo; Alessio, Giovanni (1950–1957), Dizionario etimologico italiano, 5 vols., Firenze: Barbèra (reprint 1975), p. 3112
  7. ^ Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  8. ^ a b c d e Battaglia, Salvatore; Bàrberi Squarotti, Giorgio (1961–2002), Grande dizionario della lingua italiana, 21 vols., Torino: UTET; digital ed. Accademia della Crusca
  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. ^ Tommaseo, Niccolò; Bellini, Bernardo (1861–1879), Dizionario della lingua italiana, 4 vols., Torino: UTET
  11. ^ a b c Duro, Aldo (ed.) (1986–1994), Vocabolario della lingua italiana, Roma: Istituto della Enciclopedia Italiana; online ed. treccani.it/vocabolario (2008 copy)
  12. ^ a b c d Zingarelli, Nicola (2009), Lo Zingarelli 2010: vocabolario della lingua italiana, Bologna: Zanichelli
  13. ^ Sabatini, Francesco; Coletti, Vittorio; Manfredini, Manuela (2026), Dizionario italiano Sabatini Coletti, digital ed., Milano: Sansoni / Rizzoli Larousse
  14. ^ Cortelazzo, Manlio; Marcato, Carla (1998), I dialetti italiani: dizionario etimologico, Torino: UTET

Related etymologies

Cite this entry

“Prospero.” Etymologically, 10 Nov. 2026, etymologically.com/it/prospero. Accessed 11 Nov. 2026.

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