Etymology and origin of the Romanian word undă
- Confidence
- Established
- Formation
- Inherited
- First attested
- c. 1500–1520 Psaltirea Hurmuzaki More words from the 15th century
- Inherited from
- Latin unda
- Ultimate origin
- Latin unda
Etymology tree
From the same root
Pronunciation
- /ˈun.də/[1]
Forms
undă f (plural unde)[1]
Etymology
It is inherited from Latin unda (“wave”).[2][3][4][5][1] Its Aromanian counterpart is undã.[6][7][2] Its Romance cognates include Dalmatian yonda, Italian onda, Occitan onda, Catalan ona, Spanish onda and Portuguese onda.[2][8] The senses of physics follow French onde.[5][9][10]
De Vaan derives the Latin noun from a collective Proto-Indo-European *udnom (“body of water”), built on the oblique stem of the word for water, *wódr̥ (“water”); its plural was reinterpreted as a singular “wave”.[11][1] Its cognates include Ancient Greek ὕδωρ (húdōr) and the English word water.[11][12]
Earliest recorded meaning
The first record is in the Psaltirea Hurmuzaki (early 16th century), with the plural undele “the waves”.[13][3] The Codicele Voronețean has „Cela ce se gândeaşte aseamănă-se undeei mariei, de vântu lepădată” “he who doubts is like a wave of the sea, driven by the wind” (James 1:6).[5]
Semantic evolution
From the wave the word extended to the water of the sea, of a river or a lake, and to its surface: a ieși în undă is to come to the surface, and figuratively to come to light.[3][4] The movement of boiling water gave a da în undă “to come to the boil” and “to bring to the boil”.[4][14][3] Regional speech uses the plural for fits of temper: a-i veni cuiva undele cele rele “to have one's bad moods come over one”.[3] Aromanian has similar senses, “caprices” and “nerves”.[6][7]
In the 19th century the word took the scientific sense of a wave in physics from French, and modern terms such as lungime de undă “wavelength”, unde scurte “short waves” and undă de șoc “shock wave” were formed with it.[5][9][15] Ciorănescu lists the derivatives unda “to undulate; to boil”, undeza “to boil”, undui “to ripple”, modelled on French ondoyer, and unduios “wavy”, after French onduleux.[2]
Timeline
- c. 1500–1520 – undele “the waves” in the Psaltirea Hurmuzaki, the first record.[13][3]
- c. 1563–1583 – undeei mariei “of the wave of the sea” in the Codicele Voronețean.[5]
- 1648 – tăria undelor “the force of the waves” in the New Testament of 1648.[4]
- 1825 – dau undă “I make waves” in the Lexicon of Buda.[16]
- 1977 – unda de șoc “the shock wave” of an earthquake in the press.[17]
Meanings
Noun
- A wave of water: a mass of water that rises and falls in rhythm; by extension, the water of a river, lake or sea; a torrent; rain or snow falling in gusts.[15][3][1]
- A gentle current of air; by extension, the air.[15]
- A light vibration; a faint sound;[15][18] (figurative) a surge of feeling: o undă de tristețe.[15][18]
- (physics) A wave: the propagation of an oscillation through a medium: lungime de undă “wavelength”, undă seismică “seismic wave”, unde scurte “short waves”.[15][9]
- Undă verde: a green wave, traffic lights timed so that cars can pass several in a row.[15][9]
Word family
- unda
- undeza
- undui
- unduios
Related words
- inunda
- Aromanian undã
Usage notes
The plural is unde.[15][1] A da în undă “to bring to the boil” is a kitchen phrase: the beans are given a first boil.[14][4]
References
- ^ a b c d e f Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ a b c d 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. undă
- ^ a b c d e f g Academia Română, Institutul de Lingvistică „Iorgu Iordan – Al. Rosetti” (2010), Micul dicționar academic, 2nd ed., 4 vols., București: Univers Enciclopedic Gold, p. 2, 1371
- ^ a b c d e Tiktin, Hariton (2000–2005), Rumänisch-deutsches Wörterbuch, 3rd ed., revised by Paul Miron and Elsa Lüder, 3 vols., Cluj-Napoca: Clusium, p. s.v. undă
- ^ a b c d e Academia Română (1965–2010), Dicționarul limbii române (DLR), serie nouă, tom I–XIX, București: Editura Academiei Române, p. s.v. undă
- ^ a b Papahagi, Tache (1963), Dicționarul dialectului aromân, general și etimologic, București: Editura Academiei Republicii Populare Romîne, p. 1085
- ^ a b Pascu, Giorge (1925), Dictionnaire étymologique macédoroumain, 2 vols. (I: Les éléments latins et romans; II: Les éléments grecs, turcs, slaves, albanais, germaniques, magyars, néologismes, créations immédiates, obscurs), Iași: Cultura Națională, p. 1, 180
- ^ Meyer-Lübke, Wilhelm (1935), Romanisches etymologisches Wörterbuch, 3rd ed., Heidelberg: Winter, p. 9059
- ^ a b c d Marcu, Florin (2000), Marele dicționar de neologisme, București: Saeculum Vizual, p. s.v. undă
- ^ Wikționar (Romanian Wiktionary), ro.wiktionary.org
- ^ 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
- ^ Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
- ^ a b Gînsac, Ana-Maria; Ungureanu, Mădălina; Moruz, Alexandru et al., roPsalt: Re-evaluating the Sixteenth Century Romanian Psalters (aligned corpus), Iași: Universitatea „Alexandru Ioan Cuza”, https://scriptadacoromanica.ro, p. Ps 41:10
- ^ a b Scriban, August (1939), Dicționaru limbii românești (etimologii, înțelesuri, exemple, citațiuni, arhaizme, neologizme, provincializme), Iași: Presa Bună, p. 1377
- ^ a b c d e f g h DEX (2009), Dicționarul explicativ al limbii române [Explanatory dictionary of the Romanian language], Bucharest: Editura Univers Enciclopedic, p. 1170
- ^ 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. 733
- ^ Dimitrescu, Florica (1997), Dicționar de cuvinte recente, 2nd ed., București: Logos (with the 3rd ed., 2013, in CLRE), p. s.v. undă
- ^ a b Macrea, Dimitrie; Petrovici, Emil (coord.) (1955–1957), Dicționarul limbii romîne literare contemporane, 4 vols., București: Editura Academiei Republicii Populare Romîne, p. 4, 578
Related etymologies
Cite this entry
“Undă.” Etymologically, 11 Nov. 2026, etymologically.com/ro/und%C4%83. Accessed 12 Nov. 2026.
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