Etymologically

Etymology and origin of the Romanian word serios

Confidence
Established
Formation
Borrowing
First attested
1800 Molnar's translation of Millot's universal history More words from the 18th century
Borrowed from
French sérieux
Ultimate origin
Latin serius
Etymology tree
inherited borrowed derived
Latin sērius
Italian serio
Spanish serio
Latin sēriōsus
English serious
French sérieux
Romanian serios
The word's journey
From the same root
Latin serietas ← sērius
Latin sēriō ← sērius
Italian seriamente ← serio

Pronunciation

  • /ˌse.riˈos/[1]

Forms

serios m or n (feminine singular serioasă, masculine plural serioși, feminine/neuter plural serioase)[1] The old variant serioz: „strălucind pe obrazul lor cel serioz o dulce și liniștită înțelepciune” “a sweet and quiet wisdom shining on their serious face” (Pleșoianu).[2][3]

Etymology

It is borrowed from French sérieux, with Italian serioso beside it, as Ciorănescu gives it.[4] MDA2 and Marcu add Latin seriosus, and Marcu & Maneca compare the Medieval Latin word.[4][3][5][6][1] Like many neologisms, it has several sources in the dictionaries.[3][4]

The French word was borrowed around 1370 from Medieval Latin seriosus, recorded from the 13th century, a derivative of serius (“grave, earnest”).[7] Wiktionary calls it a Late Latin formation with the suffix -ōsus.[1] The Italian word is recorded from Boccaccio, before 1375.[8] Nocentini compares the Latin adjective with Lithuanian svarùs (“heavy”) and Old High German swāri (“heavy, grievous”), so that its first sense was “heavy”.[9]

Earliest recorded meaning

The first record is in Molnar's translation of Millot's universal history (1800).[3] There a small thing gave the fickle people occasion for „petreceri serioase sau dinadinse” “serious or deliberate pastimes”.[2]

Semantic evolution

The first uses describe a grave, solemn manner, face or tone, as in Heliade's “her serious, calm voice” and Pelimon's “a serious face”.[2] Negulici's dictionary of neologisms (1848) still explains it: severe, not cheerful; true, done in earnest.[10]

Costinescu's dictionary of 1870 gives a luoa unŭ lucru în seriosŭ, la seriosŭ “to take a thing seriously”, with the French prendre au sérieux.[11] Later senses are “thorough, conscientious” of work and people, and “dangerous, grave” of an illness.[12][13]

Timeline

  • 1800 – serioase in Molnar's translation of Millot, the first record.[3][2]
  • 1848 – listed in Negulici's dictionary of neologisms.[10]
  • 1870 – a lua în serios in Costinescu's dictionary.[11]

Meanings

Adjective

  1. serious, grave, sober; not given to jokes or frivolity; staid.[12][3] Also: having a stern or solemn look; without merriment;[12][3] (of clothes) sober.[12][3]
  2. Who goes into things thoroughly and acts with care and conscientiousness; looking absorbed or concerned.[12][3]
  3. To be taken seriously; real, true.[12] Of work: thorough, deep.[12] Of a situation: that may have grave consequences, dangerous: o rană serioasă “a serious wound”.[12]
  4. Important, of note.[12]

Adverb

  1. Without joking; truly: Vorbesc serios. “I'm serious.”[12][14]
  2. Thoroughly; earnestly, determinedly.[12]

Noun

  1. (rare) Seriousness; in cu tot seriosul “in all seriousness” and a lua în serios “to take seriously”.[12][3]

Word family

  • seriozitate
  • neserios

References

  1. ^ a b c d Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d Academia Română (1965–2010), Dicționarul limbii române (DLR), serie nouă, tom I–XIX, București: Editura Academiei Române, p. s.v. serios
  3. ^ a b c d e f g h i j Academia Română, Institutul de Lingvistică „Iorgu Iordan – Al. Rosetti” (2010), Micul dicționar academic, 2nd ed., 4 vols., București: Univers Enciclopedic Gold, p. 2, 863
  4. ^ a b c 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. serios
  5. ^ Marcu, Florin (2000), Marele dicționar de neologisme, București: Saeculum Vizual, p. s.v. serios
  6. ^ Marcu, Florin; Maneca, Constant (1986), Dicționar de neologisme, 3rd ed., București: Editura Academiei Republicii Socialiste România, p. s.v. serios
  7. ^ Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert
  8. ^ Cortelazzo, Manlio; Zolli, Paolo (1999), Dizionario etimologico della lingua italiana, 2nd ed. by Manlio Cortelazzo and Michele A. Cortelazzo, Bologna: Zanichelli
  9. ^ Nocentini, Alberto; Parenti, Alessandro (2010), l'Etimologico: vocabolario della lingua italiana, Firenze: Le Monnier
  10. ^ 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, p. 359
  11. ^ a b Costinescu, Ion (1870), Vocabularu romano-francesu, 2 vols., Bucuresci, p. 2, 508
  12. ^ a b c d e f g h i j k l DEX (2009), Dicționarul explicativ al limbii române [Explanatory dictionary of the Romanian language], Bucharest: Editura Univers Enciclopedic, p. 1008
  13. ^ Scriban, August (1939), Dicționaru limbii românești (etimologii, înțelesuri, exemple, citațiuni, arhaizme, neologizme, provincializme), Iași: Presa Bună, p. 1191
  14. ^ Macrea, Dimitrie; Petrovici, Emil (coord.) (1955–1957), Dicționarul limbii romîne literare contemporane, 4 vols., București: Editura Academiei Republicii Populare Romîne, p. 4, 103

Related etymologies

  • cap · also from French
  • dura · also from French
  • pur · also from French
  • pană · also from French
  • pat · also from French
  • masă · also from French
  • lac · also from French
  • primar · also from French
Cite this entry

“Serios.” Etymologically, 11 Nov. 2026, etymologically.com/ro/serios. Accessed 12 Nov. 2026.

Last edited on . ·