Etymologically

Etymology and origin of the Proto-West Germanic word *þurstu

Confidence
Established
Formation
Inherited
Inherited from
Proto-Germanic *þurstuz
Etymology tree
inherited borrowed derived
Proto-West Germanic *þurstu
Old English þurst
English thirst

Reconstruction

Wiktionary reconstructs *þurstu for Proto-West Germanic.[1]

Etymology

It is inherited from Proto-Germanic *þurstuz (“thirst”),[1][2] which Kroonen cites as the masculine *þurstu- and Orel as *þurstuz.[2][3] EWA finds that the unmutated and mutated forms side by side point to a u-stem *þurs-tu- in Proto-Germanic, built on the zero grade of the root.[4] Kroonen takes it for a tu-stem derived from the verb *þersan-.[2]

Morphology

A masculine noun.[2] In West Germanic the u-stem partly passed into the i-stems, as in Old English þyrst beside þurst, Middle Low German dörst and Middle Dutch derst.[4] Kroonen says that it was replaced by a ti-stem in Old English.[2] Köbler gives Old English, Old Frisian and Old Dutch as i-stems,[5][6][7] while EWA leaves open whether Old High German durst was an i-stem or an a-stem, since the word is not found in the plural.[4]

Evidence

EWA finds the masculine spread over the whole of Germanic.[4] It is attested in Old English þurst, also þyrst,[2] Old Frisian thorst,[6] Old Saxon thurst in the Heliand,[8] Old Dutch thurst, with the dative ⟨thursti⟩ in the Old Low Franconian psalms of the 10th century and the accusative ⟨thurst⟩ in the Middle Franconian Rhyme Bible,[9] and Old High German durst.[4]

Competing analyses

Orel bases *þurstuz on an unattested adjective *þurstaz "thirsty", after Heidermanns,[3] and Casaretto too takes the adjective, which is found in Germanic only through its derivatives, to lie behind the West Germanic nouns, from Proto-Germanic *þurstu-.[10] EWA, which takes the masculine for a u-stem, explains Gothic 𐌸𐌰𐌿𐍂𐍃𐍄𐌴𐌹 (þaurstei) rather as an abstract noun formed on such an adjective, and finds that the n-stems such as Old Norse þorsti point to it too.[4]

Meanings

  1. thirst[1][2]

Old High German also used the word for "glow, heat".[4]

Derivatives

  • *þurstijan "to thirst, to be thirsty", which Wiktionary reconstructs;[1] Kroonen traces the denominal impersonal verbs Old English þyrstan, Old Saxon thurstian and Old High German dursten "to be thirsty" to Proto-Germanic *þurstjan-.[2]

Reflexes

  • Old English: þurst (“thirst”)[5]
  • Old Frisian: thorst (“thirst”)[6]
  • Old Saxon: thurst (“thirst”)[8]
  • Old Dutch: thurst (“thirst”)[9]
  • Old High German: durst (“thirst, glow, heat”)[4]

References

  1. ^ a b c d Wiktionary, the free dictionary, https://en.wiktionary.org, p. s.v. *þurstu
  2. ^ a b c d e f g h Kroonen, Guus (2013), Etymological Dictionary of Proto-Germanic, Leiden Indo-European Etymological Dictionary Series 11, Leiden / Boston: Brill, p. 553
  3. ^ a b Orel, Vladimir (2003), A Handbook of Germanic Etymology, Leiden / Boston: Brill, p. 430
  4. ^ a b c d e f g h Lloyd, Albert L.; Springer, Otto; Lühr, Rosemarie, et al. (1988–), Etymologisches Wörterbuch des Althochdeutschen, Göttingen: Vandenhoeck & Ruprecht; online ewa.saw-leipzig.de, p. s.v. durst
  5. ^ a b Köbler, Gerhard (2014), Altenglisches Wörterbuch, 4th ed., online, koeblergerhard.de/wikiling, p. s.v. þurst
  6. ^ a b c Köbler, Gerhard (2014), Altfriesisches Wörterbuch, 4th ed., online, koeblergerhard.de/wikiling, p. s.v. thorst
  7. ^ Köbler, Gerhard, Altniederfränkisches Wörterbuch, online, koeblergerhard.de/wikiling, p. s.v. thurst
  8. ^ a b Berr, Samuel (1971), An Etymological Glossary to the Old Saxon Heliand, Berne / Frankfurt: Herbert Lang, p. 422
  9. ^ a b Oudnederlands Woordenboek (2009–), Instituut voor de Nederlandse Taal, Leiden; gtb.ivdnt.org, p. s.v. thurst
  10. ^ Casaretto, Antje (2004), Nominale Wortbildung der gotischen Sprache: Die Derivation der Substantive, Heidelberg: Winter

Related etymologies

  • *stain · also from Proto-Germanic
  • *beran · also from Proto-Germanic
  • *sōkijan · also from Proto-Germanic
  • *fimf · also from Proto-Germanic
  • *hail · also from Proto-Germanic
  • *hertā · also from Proto-Germanic
  • *busk · also from Proto-Germanic
  • *reht · also from Proto-Germanic
Cite this entry

“*þurstu.” Etymologically, 16 Nov. 2026, etymologically.com/gmw-pro/*%C3%BEurstu. Accessed 16 Nov. 2026.

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