Etymology and origin of the Romanian word fiastru
- Confidence
- Established
- Formation
- Inherited
- First attested
- 1471 record in the Slavonic charters More words from the 15th century
- Inherited from
- Latin filiaster
- Ultimate origin
- Latin fīlius
Etymology tree
From the same root
Forms
fiastru m (plural fiaștri, feminine equivalent fiastră)[1] Old texts often have hiastru: „Având un hiastru al său, pre nume Lupașco” “having a stepson of his, named Lupașco” (Neculce).[2][3] A plural fiestri occurs in a document of 1676: „nu sânt din fiestri” “they are not of the stepsons”.[3]
Etymology
It is inherited from Late Latin fīliaster (“stepson”), formed in Latin from fīlius (“son”) with the suffix -aster.[4][2][5][1] Ciorănescu cites Pușcariu, Candrea–Densusianu, the REW, Philippide and the DAR for this etymology.[4] The feminine fiastră “stepdaughter” may also continue fīliastra directly.[4][6] Iordan held that the word was a legal term rather than a popular one, a view Ciorănescu finds uncertain.[4]
It survives south of the Danube: Aromanian hiljeastru.[7][4] Its Romance cognates include Italian figliastro, Sardinian fizastru, French fillâtre, Occitan filhastre, Catalan fillastre, Spanish hijastro and Portuguese filhastro.[6][8][4]
Earliest recorded meaning
Tiktin's first record is of 1471, from the Romanian words in the Slavonic charters.[2] The feminine fiastră follows in 1621.[2] MDA2 cites Neculce's chronicle, which has the form hiastru.[5][2]
Semantic evolution
The word has kept its single sense “stepson”, with the feminine for “stepdaughter”, but it went out of common use and survives as an archaism.[5][9][10] Old documents also use it as an adjective, feciorii fiastri “the stepsons”.[3] In Bihor the forms fiostru and hiostru show a change of suffix.[3] Nineteenth-century poets used it figuratively: Bolintineanu for an unnatural son, Eminescu for the stars as the “sweet stepchildren of the sky”.[11][12]
Timeline
- 1471 – the first record, in the Slavonic charters.[2]
- 1621 – the feminine fiastră.[2]
- 1676 – the plural fiestri in a document.[3]
- 1685 – feciorii fiastri “the stepsons”, used as an adjective.[3]
- 1810 – hiastru in a document printed in the Uricariul.[3]
- 1825 – fiastru or fiiastru in the Lexicon de la Buda.[13]
Meanings
Noun
Word family
- fiastră
Related words
Usage notes
The plural is fiaștri; older plurals are fiastri and fieștri.[3][5] The word is pronounced in three syllables, fi-as-tru.[9]
References
- ^ a b c Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ a b c d e f g Tiktin, Hariton (2000–2005), Rumänisch-deutsches Wörterbuch, 3rd ed., revised by Paul Miron and Elsa Lüder, 3 vols., Cluj-Napoca: Clusium, p. s.v. fiastru
- ^ a b c d e f g h Academia Română (1913–1949), Dicționarul limbii române (DA), ed. Sextil Pușcariu, tom I (A–B, C, D–De) and tom II (F–I, J–Lojniță), București: Socec / Universul / Monitorul Oficial și Imprimeriile Statului; page scans at cflr-scans.solirom.ro, p. s.v. fiastru
- ^ a b c d e f 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. fiastru
- ^ a b c d e Academia Română, Institutul de Lingvistică „Iorgu Iordan – Al. Rosetti” (2010), Micul dicționar academic, 2nd ed., 4 vols., București: Univers Enciclopedic Gold, p. 1, 899
- ^ a b Candrea, I.-A.; Densusianu, Ov. (1907–1914), Dicționarul etimologic al limbii române: elementele latine (A–Putea), București, p. s.v. fiastru
- ^ Papahagi, Tache (1963), Dicționarul dialectului aromân, general și etimologic, București: Editura Academiei Republicii Populare Romîne, p. 556
- ^ Meyer-Lübke, Wilhelm (1935), Romanisches etymologisches Wörterbuch, 3rd ed., Heidelberg: Winter, p. 3295
- ^ a b Academia Republicii Populare Romîne (1958), Dicționarul limbii romîne moderne, București: Editura Academiei Republicii Populare Romîne
- ^ Academia Română, Institutul de Lingvistică „Iorgu Iordan – Al. Rosetti” (2002), Noul dicționar explicativ al limbii române, București: Litera Internațional, p. s.v. fiastru
- ^ Damé, Frédéric (1893–1895), Nouveau dictionnaire roumain-français, 4 vols., Bucarest: Imprimerie de l'État, p. s.v. fiastru
- ^ a b Macrea, Dimitrie; Petrovici, Emil (coord.) (1955–1957), Dicționarul limbii romîne literare contemporane, 4 vols., București: Editura Academiei Republicii Populare Romîne, p. 2, 283
- ^ Lesicon românescu-latinescu-ungurescu-nemțescu quare de mai mulți autori, în cursul a trideci și mai multor ani s-au lucrat (1825), Buda: Typographia Universității (the Lexicon of Buda, ed. Petru Maior et al.), p. 217
Related etymologies
Cite this entry
“Fiastru.” Etymologically, 11 Nov. 2026, etymologically.com/ro/fiastru. Accessed 12 Nov. 2026.
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