Etymologically

Etymology and origin of the Romanian word defect

Confidence
Established
Formation
Borrowing
First attested
c. 1800 More words from the 18th century
Borrowed from
Latin defectus
Ultimate origin
Latin faciō
Etymology tree
inherited borrowed derived
Latin faciō
Aromanian fac
French faire
Italian fare
Romanian face
Spanish hacer
Latin dēficiō
Latin dēfectus
English defect
Romanian defect
From the same root
English surfeit ← faciō
French affaire ← faciō
French défaire ← faciō
Latin afficiō ← faciō
Latin assuefacio ← faciō
Latin calefaciō ← faciō
Latin clārificus ← faciō
Latin commonefaciō ← faciō
Latin cōnficiō ← faciō
Latin disfaciō ← faciō
Latin efficiō ← faciō
Latin facessō ← faciō
Latin facibilis ← faciō
Latin facienda ← faciō
Latin faciēs ← faciō
Latin facilis ← faciō
Latin facinus ← faciō
Latin factiō ← faciō
Latin factitō ← faciō
Latin factor ← faciō
Latin factūra ← faciō
Latin factus ← faciō
Latin fortificō ← faciō
Latin frīgefactō ← faciō
Latin īnficiō ← faciō
Latin interficiō ← faciō
Latin iūstificō ← faciō
Latin labefaciō ← faciō
Latin liquefaciō ← faciō
Latin mollificō ← faciō
See all derived words →

Forms

defect m or n (feminine singular defectă, masculine plural defecți, feminine/neuter plural defecte)[1] Older texts also have defet: Heliade-Rădulescu asks how the nation could ennoble itself „prin defeturile și greșalele naturii” “through the defects and errors of nature”.[2][3]

Etymology

It is a learned borrowing borrowed from Latin dēfectus (“failure, lack, deficiency”), with German Defekt as a second model: DELR, MDA2, DEX and Wiktionary give both sources.[4][3][5][1] Ciorănescu names only the Latin word and dates the borrowing to the 19th century, Tiktin names the Latin word and German, perhaps as an intermediary.[6][7] Scriban takes the form from Latin but the sense from French défaut.[8] The Latin noun is formed on dēficiō (“to fail, be lacking”), from dē- and faciō (“to make, do”).[4][9][10] The German noun, meaning “fault, damage”, is itself from the Latin noun and is recorded from the 16th century.[10][11]

The adjective “broken, out of order” is borrowed from German defekt, which is the Latin past participle of the same verb; the DLR takes it from Latin.[4] The early variant defectuș is from Hungarian defektus.[4]

Earliest recorded meaning

Tiktin dates the first record to about 1800, with the sense “lack, flaw”.[7] DELR's earliest record is of 1805, in the Hungarian-influenced variant defectuș, in a text by Aaron.[4]

Semantic evolution

The first sense is a lack of an expected quality, an imperfection, moral, physical or material.[4][2] In the 19th century dictionaries it stands for French défaut: Negulici (1848) glosses it with viciu and neperfecție, Costinescu (1870) with cusur and metehnă.[12][13][14] Beside it stands the technical sense, a fault that keeps a machine or device from working.[4][5] DELR records the adjective “broken” from 1907 and the verb defecta “to break down” from 1919.[4] Physics has defect de masă “mass defect”.[3][15]

The family grew mostly by further loans from French: defectuos “faulty” from French défectueux, defectiv “defective (of a word)” from Latin and French, defectibil from défectible.[6][4] A second verb defecta “to defect, desert one's side”, recorded in 2006, is from English defect.[4]

Timeline

  • c. 1800 – the first record, according to Tiktin.[7]
  • 1805 – the variant defectuș in a text by Aaron.[4]
  • 1815–1820 – defectiv in Budai-Deleanu.[4]
  • c. 1832 – defectuos and defectuozitate in Iordache Golescu's Condica.[4]
  • 1848 – defect in Negulici's dictionary of neologisms.[12][4]
  • 1907 – the adjective “not working properly, broken”.[4]
  • 1919 – the verb defecta “to break down”.[4]
  • 1957 – defectologie, the study of people with disabilities, from Russian.[4]
  • 2006 – defecta “to defect, desert”, from English.[4]

Meanings

Noun

  1. A lack or imperfection, material, physical or moral; a cusur.[5][3]
  2. A fault or breakdown that keeps a machine or device from working properly.[5][3]
  3. Something that does not keep to the rules set in a field.[5][3]
  4. A drawback, an inconvenience.[5][15]
  5. (physics) defect de masă: the mass defect, the difference between the sum of the masses of a nucleus's protons and neutrons and its real mass.[3][15]

Adjective

  1. broken, out of order; having a defect.[5][3]

Word family

  • defecta
  • defectiv
  • defectolog
  • defectologie
  • defectuos
  • defectuozitate
  • defecțiune
  • defectibil

References

  1. ^ a b Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b Academia Română (1965–2010), Dicționarul limbii române (DLR), serie nouă, tom I–XIX, București: Editura Academiei Române, p. s.v. defect
  3. ^ a b c d e f g h Academia Română, Institutul de Lingvistică „Iorgu Iordan – Al. Rosetti” (2010), Micul dicționar academic, 2nd ed., 4 vols., București: Univers Enciclopedic Gold, p. 1, 625
  4. ^ a b c d e f g h i j k l m n o p q r Academia Română, Institutul de Lingvistică „Iorgu Iordan – Al. Rosetti” (2011–), Dicționarul etimologic al limbii române (DELR), vol. I: A–B (2011), vol. II: C (2015–2018), București: Editura Academiei Române; continued online at delr.lingv.ro, p. s.v. defect
  5. ^ a b c d e f g DEX (2009), Dicționarul explicativ al limbii române [Explanatory dictionary of the Romanian language], Bucharest: Editura Univers Enciclopedic, p. 281
  6. ^ a b 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. defect
  7. ^ a b c Tiktin, Hariton (2000–2005), Rumänisch-deutsches Wörterbuch, 3rd ed., revised by Paul Miron and Elsa Lüder, 3 vols., Cluj-Napoca: Clusium, p. s.v. defect
  8. ^ Scriban, August (1939), Dicționaru limbii românești (etimologii, înțelesuri, exemple, citațiuni, arhaizme, neologizme, provincializme), Iași: Presa Bună, p. 397
  9. ^ Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  10. ^ a b Kluge, Friedrich; Seebold, Elmar (2011), Etymologisches Wörterbuch der deutschen Sprache, 25th ed., Berlin / Boston: De Gruyter, p. 184
  11. ^ Pfeifer, Wolfgang, et al. (1993), Etymologisches Wörterbuch des Deutschen, 2nd ed., Berlin: Akademie-Verlag; digital revised version in the DWDS, dwds.de
  12. ^ a b Negulici, I. D. (1848), Vocabular romînesc de toate vorbele streine întroduse pînă acum în limba romînească și de toate cuvintele ce s-ar mai putea introduce încă, București
  13. ^ Costinescu, Ion (1870), Vocabularu romano-francesu, 2 vols., Bucuresci, p. 1, 301
  14. ^ Damé, Frédéric (1893–1895), Nouveau dictionnaire roumain-français, 4 vols., Bucarest: Imprimerie de l'État
  15. ^ a b c Marcu, Florin (2000), Marele dicționar de neologisme, București: Saeculum Vizual, p. s.v. defect

Related etymologies

  • apă · also from Latin
  • 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
Cite this entry

“Defect.” Etymologically, 12 Nov. 2026, etymologically.com/ro/defect. Accessed 12 Nov. 2026.

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