Etymologically

Etymology and origin of the German word warnen

Confidence
Established
Formation
Inherited
First attested
765, Old High German glosses
Inherited from
Middle High German warnen
Ultimate origin
Proto-Germanic (*warnōną)

Pronunciation

  • /ˈvaʁnən/, /ˈvaːnən/, /ˈvaːnn̩/[1]

Forms

warnen (third-person singular present warnt, past tense warnte, past participle gewarnt, auxiliary haben)[1]

Etymology

It is inherited from Middle High German warnen, inherited from Old High German warnōn, inherited from Proto-West Germanic *warnōn (“to take heed, warn”).[2][3][1] The same verb is Old English wearnian, continued in English warn, and Middle Low German warnen, Middle Dutch warnen and Old Norse varna.[2][3][4] Wiktionary reconstructs Proto-Germanic *warnōną, derived from a noun *warnō (“warning”).[1][4]

Kluge, Pfeifer and Duden place it in the family of wahren: Kluge takes it most probably as a formation with a suffix in /n/ from that root, so that it first meant “to look out for oneself” and “to make someone look out”.[2][3][5] Wiktionary takes the root as Proto-Indo-European *wer- (“to become aware, take heed”),[1] while Köbler gives it the meaning “to shut, cover, protect”.[6] The Grimms' dictionary adds that a verb from the family of wehren, Proto-Germanic *warnjan “to refuse, prevent”, was mixed with it; this verb is Old High German warnen in the Hildebrandslied, Old Saxon wernian and Old English wyrnan.[7][6] The Germanic verb also gave Italian guarnire (“to equip”) and French garnir (see garnieren).[7][5]

Earliest recorded meaning

Old High German warnōn is first recorded in glosses of 765, and then in Otfrid and Notker, meaning “to protect, prepare, equip” and, with a reflexive pronoun, “to take care, beware” or “to provide oneself with something”.[6][8] The form warnen “to refuse” is found in the Hildebrandslied.[8][6]

Semantic evolution

In Middle High German the reflexive verb meant to prepare or arm oneself and to provide oneself with something.[9][10] In late Middle High German and Early New High German it could also mean “to prevent”, as in Fronsperger's pairing of warnen with wenden “to avert” harm.[10] The modern sense, telling someone of a coming danger so that they can avoid it, is found from the Nibelungenlied on, but became common only in New High German.[10] Adelung defined the verb in just this way.[11]

From the 17th to the 19th century one could also warn wider or gegen something, as Herder did;[10] vor is already found in Konrad von Würzburg and became the usual preposition.[10] The noun Warnung goes back to Old High German warnunga (about 1000) and has had its present sense since the 16th century.[3] verwarnen meant “to reprove, point to a danger” in the 16th century and “to threaten with a penalty” from the second half of the 18th.[3]

Timeline

  • 765 – Old High German warnōn appears in glosses.[6]
  • 8th century – The Hildebrandslied has warnen “to refuse”.[6]
  • About 1000 – First record of warnunga “preparation, protection”.[3]
  • Middle High German – The Nibelungenlied has the first instances of the modern sense.[10]
  • 1482 – The Vocabularius teutonico-latinus records warnen.[10]
  • 16th century – Warnung takes on its present sense.[3]
  • Second half of the 18th century – verwarnen comes to mean “to threaten with a penalty”.[3]

Meanings

Verb

  1. To warn someone of a danger, with vor and the dative: Der Wetterdienst warnt vor Sturmböen.; also without an object.[12][1]
  2. To advise someone urgently against something, often with a threat: Ich warne dich, fass das nicht an!;[12] ein warnendes Beispiel, a deterrent example.[12]

Word family

  • verwarnen
  • Warnung
  • wahren
  • wehren
  • garnieren
  • English warn

References

  1. ^ a b c d e f Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c Kluge, Friedrich; Seebold, Elmar (2011), Etymologisches Wörterbuch der deutschen Sprache, 25th ed., Berlin / Boston: De Gruyter, p. 971
  3. ^ a b c d e f g h Pfeifer, Wolfgang, et al. (1993), Etymologisches Wörterbuch des Deutschen, 2nd ed., Berlin: Akademie-Verlag; digital revised version in the DWDS, dwds.de
  4. ^ a b Orel, Vladimir (2003), A Handbook of Germanic Etymology, Leiden / Boston: Brill
  5. ^ a b Duden. Das Herkunftswörterbuch: Etymologie der deutschen Sprache (2020), 6th ed., Duden vol. 7, Berlin: Dudenverlag
  6. ^ a b c d e f Köbler, Gerhard (2014), Althochdeutsches Wörterbuch, 6th ed., online, koeblergerhard.de/wikiling
  7. ^ a b Grimm, Jacob; Grimm, Wilhelm (1854–1961), Deutsches Wörterbuch, 16 vols. in 32, Leipzig: Hirzel; digital: Wörterbuchnetz, Trier Center for Digital Humanities, p. 27, 2078
  8. ^ a b Schützeichel, Rudolf (2012), Althochdeutsches Wörterbuch, 7th ed., Berlin / Boston: De Gruyter, p. 372
  9. ^ Lexer, Matthias (1872–1878), Mittelhochdeutsches Handwörterbuch, 3 vols., Leipzig: Hirzel; digital: Wörterbuchnetz, Trier Center for Digital Humanities, p. 3, 693
  10. ^ a b c d e f g Paul, Hermann (2002), Deutsches Wörterbuch: Bedeutungsgeschichte und Aufbau unseres Wortschatzes, 10th ed., ed. Helmut Henne, Heidrun Kämper and Georg Objartel, Tübingen: Niemeyer
  11. ^ Adelung, Johann Christoph (1793–1801), Grammatisch-kritisches Wörterbuch der Hochdeutschen Mundart, 2nd ed., 4 vols., Leipzig: Breitkopf
  12. ^ a b c Duden. Das große Wörterbuch der deutschen Sprache in zehn Bänden (1999), 3rd ed., Mannheim: Dudenverlag

Related etymologies

  • dass · also from Proto-Germanic
  • nach · also from Proto-Germanic
  • können · also from Proto-Germanic
  • bei · also from Proto-Germanic
  • auch · also from Proto-Germanic
  • er · also from Proto-Germanic
  • es · also from Proto-Germanic
  • nicht · also from Proto-Germanic
Cite this entry

“Warnen.” Etymologically, 20 Oct. 2026, etymologically.com/de/warnen. Accessed 20 Oct. 2026.

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