Etymologically

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

Confidence
Established
Formation
Inherited
Inherited from
Proto-Germanic *baþą
Etymology tree
inherited borrowed derived
Proto-West Germanic *baþ
German Bad

Reconstruction

Ringe and Taylor reconstruct *baþ, plural *baþu, for Proto-West Germanic,[1] and Wiktionary has the same form.[2]

Etymology

It is inherited from Proto-Germanic *baþą (“bath”),[1][2] which Ringe and Taylor reconstruct for Proto-Northwest Germanic as *baþą, plural *baþu, and Orel as *ƀaþan, Köbler as *baþa-, *baþam.[1][3][4] EWA sets up a Germanic base form *baþ-a-m and relates it to the root of the verb Old High German bāen (“to warm, to foment”),[5] and Orel derives it from the Proto-Germanic verb *ƀējanan.[3]

Morphology

A neuter a-stem.[6][5] In Old English the vowel was retracted in the plural, where the ending had a back vowel: singular ⟨bæþ⟩, plural ⟨baþu⟩.[7]

Evidence

EWA finds the word in all the Germanic languages but Gothic.[5] It is attested as Old English bæþ, Old Frisian beth, Old Saxon bath (genitive plural ⟨bađo⟩) and Old High German bad.[1] Köbler records the Old Saxon genitive plural in the Heliand, line 981.[6] In Old Frisian, a by-form ⟨beith⟩ shows a spelling typical of its dialect.[8] German place names such as az Badun, the source of Baden-Baden, are mostly named after warm springs, often in imitation of Latin Aquae.[5] For Old Dutch, ONW records only the verb bathon (“to bathe”).[9]

Meanings

  1. bath[1][2]

Old High German also used the word for "baptism" and "bathhouse",[10] Old Saxon for "bathhouse",[6] and Old English glosses Latin lavacrum and fons with it.[11]

Derivatives

  • *baþōn "to bathe", from Proto-Northwest Germanic *baþōną: Old High German badōn, Old English baþian.[12] Old Dutch has it in Williram's commentary on the Song of Songs of 1100, ⟨gebathot⟩ "bathed".[9]
  • *baþþjan "to make wet with warm water, to boil", which Wiktionary reconstructs;[13] Köbler gives Old English beþþan (“to warm, to heat, to foment”).[14]

Reflexes

  • Old English: bæþ (“bath”)[11]
  • Old Frisian: beth (“bath”)[15]
  • Old Saxon: bath (“bath, bathhouse”)[6]
  • Old High German: bad (“bath, baptism, bathhouse”)[10]

References

  1. ^ a b c d e Ringe, Don; Taylor, Ann (2014), The Development of Old English, A Linguistic History of English II, Oxford: Oxford University Press, p. 194
  2. ^ a b c Wiktionary, the free dictionary, https://en.wiktionary.org, p. s.v. *baþ
  3. ^ a b Orel, Vladimir (2003), A Handbook of Germanic Etymology, Leiden / Boston: Brill, p. 39
  4. ^ Köbler, Gerhard (2014), Germanisches Wörterbuch, 5th ed., online, koeblergerhard.de/wikiling, p. s.v. *baþa-
  5. ^ a b c d 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. bad
  6. ^ a b c d Köbler, Gerhard (2014), Altsächsisches Wörterbuch, 5th ed., online, koeblergerhard.de/wikiling, p. s.v. bath
  7. ^ Ringe, Don; Taylor, Ann (2014), The Development of Old English, A Linguistic History of English II, Oxford: Oxford University Press, p. 193–194
  8. ^ Boutkan, Dirk; Siebinga, Sjoerd Michiel (2005), Old Frisian Etymological Dictionary, Leiden Indo-European Etymological Dictionary Series 1, Leiden / Boston: Brill, p. s.v. beth
  9. ^ a b Oudnederlands Woordenboek (2009–), Instituut voor de Nederlandse Taal, Leiden; gtb.ivdnt.org, p. s.v. bathon
  10. ^ a b Köbler, Gerhard (2014), Althochdeutsches Wörterbuch, 6th ed., online, koeblergerhard.de/wikiling, p. s.v. bad
  11. ^ a b Köbler, Gerhard (2014), Altenglisches Wörterbuch, 4th ed., online, koeblergerhard.de/wikiling, p. s.v. bæþ
  12. ^ Ringe, Don; Taylor, Ann (2014), The Development of Old English, A Linguistic History of English II, Oxford: Oxford University Press, p. 190
  13. ^ Wiktionary, the free dictionary, https://en.wiktionary.org, p. s.v. *baþþjan
  14. ^ Köbler, Gerhard (2014), Altenglisches Wörterbuch, 4th ed., online, koeblergerhard.de/wikiling, p. s.v. bėþian
  15. ^ Hofmann, Dietrich; Popkema, Anne Tjerk (2008), Altfriesisches Handwörterbuch, Heidelberg: Carl Winter, p. s.v. beth

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

“*baþ.” Etymologically, 16 Nov. 2026, etymologically.com/gmw-pro/*ba%C3%BE. Accessed 16 Nov. 2026.

Last edited on . ·