Etymologically

Etymology and origin of the French word prof

Confidence
Established
Formation
Clipping
First attested
1890 More words from the 19th century
Ultimate origin
Latin profiteor
Etymology tree
inherited borrowed derived
Latin fateor
Latin prōfiteor
English profess
Latin professor
English professor
French professeur
French prof
German Professor
Italian professore
Romanian profesor
Spanish profesor
From the same root
Latin cōnfiteor ← fateor
Latin īnfitior ← fateor
Latin professiō ← prōfiteor
Latin prŏfessus ← prōfiteor
English prof ← professor

Pronunciation

Forms

prof m or f by sense (plural profs)[1]

Etymology

It is a clipping from French professeur, recorded from 1890 according to Esnault.[2][3][4] The longer word was taken in 1337 from Latin professor (“one who professes an art, a teacher”), a noun from profiteor (“to declare openly, to profess”), formed of prō (“before”) and fateor (“to admit, to declare”).[5]

Earliest recorded meaning

It is first recorded in 1890, in school slang, for a teacher.[2][6]

Semantic evolution

Born in pupils' slang, it became the ordinary familiar word for a teacher, at school or at university.[6][2][4] It is used of men and women alike, with the article showing the gender, while professeur long stayed masculine in European French even of a woman.[4][1][5]

Timeline

  • 1337 – Professeur is borrowed from Latin.[5]
  • 1890 – The short form prof is recorded in school slang.[2][6]

Meanings

Noun

  1. (familiar) A teacher: Notre prof d'histoire est absent aujourd'hui.[2][4]
  2. (familiar) A university lecturer: Sa mère est prof de fac à Lille.[4]

References

  1. ^ a b c Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e Trésor de la langue française informatisé (2004), ATILF – CNRS & Université de Lorraine, atilf.fr/tlfi; electronic version of Imbs, Paul; Quemada, Bernard, eds. (1971–1994), Trésor de la langue française, Paris: CNRS / Gallimard
  3. ^ Rey, Alain, ed. (2005), Le Grand Robert de la langue française, electronic version, Paris: Le Robert
  4. ^ a b c d e Rey-Debove, Josette; Rey, Alain, eds. (2007), Le Petit Robert de la langue française, Paris: Le Robert
  5. ^ a b c Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert
  6. ^ a b c Guilbert, Louis; Lagane, René; Niobey, Georges, eds. (1971–1978; 1989), Grand Larousse de la langue française, Paris: Larousse
Cite this entry

“Prof.” Etymologically, 14 Nov. 2026, etymologically.com/fr/prof. Accessed 14 Nov. 2026.

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