Etymologically

Etymology and origin of the Romanian word foi

Confidence
Disputed
Formation
Derivation
First attested
1645 the Romanian translation of Herodotus More words from the 17th century
Ultimate origin
Latin folium
Etymology tree
inherited borrowed derived
Latin folium
Italian foglio
Latin folia
French feuille
Italian foglia
Romanian foaie
Romanian foi
Spanish hoja

Pronunciation

Forms

foi (third-person singular present foiește, past participle foit), 4th conjugation[1]

Etymology

Ciorănescu derives it from Romanian foaie + -i, from the noun for “leaf”, and calls the older derivation from foale “bellows” or from a Latin verb a mistake (against Cihac, Schuchardt, Candrea–Densusianu and the DA, with Graur).[2] DEX and MDA2 give both views: from Vulgar Latin *folliō (classical folleō) or a derivative of the noun;[3][4][1] Wiktionary does the same.[3][4][1] Candrea and Densusianu explain the sense from that of the Latin verb, “to swell and empty like bellows”: the movement to and fro of the bellows became the swarming of a crowd.[5] The Latin verb is from follis (“bag; bellows”).[1][6]

Tiktin connects the main senses, “to teem” and the reflexive “to fidget”, with the Romance word for a crowd, Spanish folla and French foule, and the sense “to work the bellows” with the word for bellows.[7]

Earliest recorded meaning

Tiktin's first record is the Romanian Herodotus translation of 1645.[7] MDA2 dates the verb from Costache Negruzzi's writings of 1872.[4]

Semantic evolution

MDA2 puts first the sense “to swell and go down like bellows”, now old and popular, and a rare “to blow into the bellows”;[4][7] Tiktin quotes a horse whose belly heaves like a Gypsy smith's bellows.[4][7] The common sense is of a crowd moving to and fro: fish swarming in water like ants in an anthill, people crowding the village streets, and a place full of people.[7][8]

The reflexive a se foi means “to fidget, to keep moving”, then “to toss and turn” and, figuratively, “to hesitate”.[3][4] Popular speech also uses it for “to beat”, and in Maramureș the reflexive means “not to find one's place”.[4][9]

Timeline

  • 1645 – the first record, in the Romanian Herodotus.[7]
  • 1872 – in Costache Negruzzi's collected writings.[4]

Meanings

Verb

  1. (intransitive, of a crowd) To swarm, move to and fro, teem: Copiii foiau prin curte.[3][10]
  2. (intransitive, of a place) To be full of people moving about.[3][4]
  3. (reflexive) To fidget, not stay still; to toss and turn looking for a comfortable position;[3][4] (figurative) to hesitate.[3][4]
  4. (transitive) To make a garment puff out around the body.[3]

Word family

  • foială

Usage notes

DEX also lists a noun foi (DEX's foi¹), a variant of foale “bellows”, which Scriban gives as the bellows of the smithy and Șăineanu as a plural.[3][11][12] Foi is also the plural of foaie “leaf, sheet”.[13]

References

  1. ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ Ciorănescu, Alexandru (1958–1966), Diccionario etimológico rumano, La Laguna: Universidad de La Laguna (Romanian ed.: Dicționarul etimologic al limbii române, București: Saeculum, 2001), p. s.v. foaie
  3. ^ a b c d e f g h i DEX (2009), Dicționarul explicativ al limbii române [Explanatory dictionary of the Romanian language], Bucharest: Editura Univers Enciclopedic, p. 404
  4. ^ a b c d e f g h i j k Academia Română, Institutul de Lingvistică „Iorgu Iordan – Al. Rosetti” (2010), Micul dicționar academic, 2nd ed., 4 vols., București: Univers Enciclopedic Gold, p. 1, 924
  5. ^ Candrea, I.-A.; Densusianu, Ov. (1907–1914), Dicționarul etimologic al limbii române: elementele latine (A–Putea), București
  6. ^ de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
  7. ^ a b c d e f Tiktin, Hariton (2000–2005), Rumänisch-deutsches Wörterbuch, 3rd ed., revised by Paul Miron and Elsa Lüder, 3 vols., Cluj-Napoca: Clusium, p. s.v. foi
  8. ^ Macrea, Dimitrie; Petrovici, Emil (coord.) (1955–1957), Dicționarul limbii romîne literare contemporane, 4 vols., București: Editura Academiei Republicii Populare Romîne, p. 2, 312
  9. ^ Ștef, Dorin (2021), Dicționar de regionalisme și arhaisme din județul Maramureș, 3rd ed., Baia Mare, p. s.v. foí
  10. ^ Academia Română, Institutul de Lingvistică „Iorgu Iordan – Al. Rosetti” (2002), Noul dicționar explicativ al limbii române, București: Litera Internațional, p. s.v. foi
  11. ^ Scriban, August (1939), Dicționaru limbii românești (etimologii, înțelesuri, exemple, citațiuni, arhaizme, neologizme, provincializme), Iași: Presa Bună, p. 1, 518
  12. ^ Șăineanu, Lazăr (1929), Dicționar universal al limbei române, 6th ed., Craiova: Scrisul Românesc, p. 1, 256
  13. ^ Antonescu, G. M. (1875), Dictionariu romanu-francesu, Bucuresci: Typografia Curții (Lucrători Associați), p. 106

Related etymologies

  • bun · also from Latin
  • unde · also from Latin
  • veni · also from Latin
  • noi · also from Latin
  • bine · also from Latin
  • un · also from Latin
  • și · also from Latin
  • sta · also from Latin
Cite this entry

“Foi.” Etymologically, 11 Nov. 2026, etymologically.com/ro/foi. Accessed 12 Nov. 2026.

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