Etymologically

Etymology and origin of the Romanian word fază

Confidence
Established
Formation
Borrowing
First attested
1867–1892 Titu Maiorescu's Critice More words from the 19th century
Borrowed from
French phase
Ultimate origin
Ancient Greek φαίνω

Pronunciation

Forms

fază f (plural faze)[1]

Etymology

It is borrowed from French phase.[2][3][1][4] NODEX names German Phase as well.[5] The French word was borrowed in 1544 from Ancient Greek φάσις (phásis, “appearance; phase of the Moon”), a noun formed on φαίνω (phaínō, “to appear”).[6][7][8] DETS and Marcu also list a combining form -fază of the same origin.[9][10]

Earliest recorded meaning

MDA2's first record is in Titu Maiorescu's Critice, the collected essays of 1867–1892.[3] Early literary uses are figurative, for a stage in a development: Alecu Russo calls folk poetry the first fază of a nation's civilization.[11]

Semantic evolution

Romanian has both the astronomical sense, the changing aspect of the Moon or a planet, and the figurative “stage of a development”, which Șăineanu and CADE list second.[12][4] Technical senses came later: a phase of matter in chemistry and physics, a circuit of a polyphase electrical system, and the argument of a sinusoidal quantity.[11][2][3] The colloquial phrase a fi pe fază “to be on the ball, ready to act at once” is recorded from 1993.[13]

Timeline

  • 1867–1892 – first record, in Maiorescu's Critice.[3]
  • 1929 – the phases of the Moon and the figurative “successive change” in Șăineanu's dictionary.[12]
  • 1950s – the chemical sense “phase of a system”.[11]
  • 1993 – a fi pe fază “to be alert” in România liberă.[13]

Meanings

Noun

  1. Each distinct stage in the development of a natural or social process; each of the successive states of a change.[2][3]
  2. (astronomy) Each of the successive aspects of the Moon or a planet, depending on how much of its sunlit side faces the Earth: fazele Lunii “the phases of the Moon”.[2]
  3. (electricity) Each of the circuits that make up a polyphase electrical system.[2][5]
  4. (physics, chemistry) Each homogeneous part (solid, liquid or gas) of a heterogeneous system; also the argument of a quantity that varies sinusoidally.[3][2]
  • French phase

Usage notes

A fi pe fază (colloquial) means “to be alert and act promptly at the right moment”.[2][13]

References

  1. ^ a b c Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ 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. 383
  3. ^ a b c d e f Academia Română, Institutul de Lingvistică „Iorgu Iordan – Al. Rosetti” (2010), Micul dicționar academic, 2nd ed., 4 vols., București: Univers Enciclopedic Gold, p. 1, 881
  4. ^ a b Candrea, I.-A.; Adamescu, Gh. (1926–1931), Dicționarul enciclopedic ilustrat „Cartea Românească”, București: Cartea Românească, p. s.v. fază
  5. ^ a b Academia Română, Institutul de Lingvistică „Iorgu Iordan – Al. Rosetti” (2002), Noul dicționar explicativ al limbii române, București: Litera Internațional, p. s.v. fază
  6. ^ Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert, p. s.v. phase
  7. ^ Marcu, Florin; Maneca, Constant (1986), Dicționar de neologisme, 3rd ed., București: Editura Academiei Republicii Socialiste România, p. s.v. fază
  8. ^ Scriban, August (1939), Dicționaru limbii românești (etimologii, înțelesuri, exemple, citațiuni, arhaizme, neologizme, provincializme), Iași: Presa Bună, p. 496
  9. ^ Andrei, Nicolae (1987), Dicționar etimologic de termeni științifici: elemente de compunere greco-latine, București: Editura Științifică și Enciclopedică, p. s.v. fază
  10. ^ Marcu, Florin (2000), Marele dicționar de neologisme, București: Saeculum Vizual, p. s.v. fază
  11. ^ a b c Macrea, Dimitrie; Petrovici, Emil (coord.) (1955–1957), Dicționarul limbii romîne literare contemporane, 4 vols., București: Editura Academiei Republicii Populare Romîne, p. 2, 266
  12. ^ a b Șăineanu, Lazăr (1929), Dicționar universal al limbei române, 6th ed., Craiova: Scrisul Românesc, p. 246
  13. ^ a b c Dimitrescu, Florica (1997), Dicționar de cuvinte recente, 2nd ed., București: Logos (with the 3rd ed., 2013, in CLRE), p. s.v. fază

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

“Fază.” Etymologically, 12 Nov. 2026, etymologically.com/ro/faz%C4%83. Accessed 12 Nov. 2026.

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