Etymologically

Etymology and origin of the Old English word muþ

Confidence
Established
Formation
Inherited
First attested
c. 850 Vespasian Psalter gloss More words from the 9th century
Inherited from
Proto-West Germanic *munþ
Ultimate origin
Proto-Indo-European *mn̥tós
Etymology tree
inherited borrowed derived
Old English mūþ
English mouth
From the same root
English mouthpiece ← mūþ

Pronunciation

Forms

mūþ m (strong a-stem; genitive singular mūþes, nominative plural mūþas)[1]

Etymology

It is inherited from Proto-West Germanic *munþ, from Proto-Germanic *munþaz (“mouth”).[1][2] The Proto-Germanic noun is continued in Gothic 𐌼𐌿𐌽𐌸𐍃 (munþs), Old Norse munnr beside muðr, Old Frisian mūth, Old Saxon mūth and Old High German mund.[2][3]

Kroonen and Orel reconstruct Proto-Indo-European *mn̥t-o- and compare Latin mentum (“chin”) and Middle Welsh mant (“jaw, gums”);[2][4] Kroonen also considers a root *stment-.[2][4] Köbler gives the root *ment- (“to chew; mouth”).[5]

The nasal was lost before the fricative ⟨þ⟩ and the vowel lengthened, a change Old English shares with Old Frisian and Old Saxon: Proto-Germanic ⟨*munþaz⟩ became ⟨*mų̄þ⟩ and then ⟨mūþ⟩, against the ⟨nd⟩ of Old High German.[6][7]

Earliest recorded meaning

The word is recorded from the mid-ninth century: the Vespasian Psalter gloss has Ðes muð awergednisse & bitternisse ful is & facne “whose mouth is full of cursing and bitterness and deceit” over the Latin “Cuius os maledictione et amaritudine plenum est, et dolo” of Psalm 9.[8][9]

Semantic evolution

The word names the mouth as the way in for food, as the organ of speech and, in phrases such as mūþe tō mūþe, the face.[10][11] It also means any opening: Bosworth and Toller cite the gloss orificium, and the gnomic verses ask for rum recedes muþ, a roomy door, on a hall.[10] In glosses it renders Latin os, labium and ostium.[5] Æthelberht's laws use it of the mouth, Alfred's of the opening of a wound.[12] The MED traces Middle English mouth to this word and to mūþa “mouth of a river”.[13]

Timeline

  • s. ix med. – muð glossing Latin os in the Vespasian Psalter gloss.[8][9]
  • 890×897 – the ox's mouth that must not be muzzled, in the Pastoral Care (Hatton 20).[14][9]
  • s. x² – Ic þurh muþ sprece in Exeter Book Riddle 8.[1][15]
  • s. x ex. – muð in Ælfric's Catholic Homilies I.[16][9]

Meanings

Noun

  1. the mouth, of people and animals.[10][5]
  2. the mouth as the organ of speech.[10]
  3. an opening, an orifice; a door or gate.[10][5]

Word family

  • mūþlēas

Descendants

  • Middle English mouth (→ English mouth; English maath; Scots mooth)[1]
  • ġemȳþe
  • mūþa

References

  1. ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d Kroonen, Guus (2013), Etymological Dictionary of Proto-Germanic, Leiden Indo-European Etymological Dictionary Series 11, Leiden / Boston: Brill, p. 376
  3. ^ Ringe, Don; Taylor, Ann (2014), The Development of Old English, A Linguistic History of English II, Oxford: Oxford University Press, p. 29
  4. ^ a b Orel, Vladimir (2003), A Handbook of Germanic Etymology, Leiden / Boston: Brill, p. 276
  5. ^ a b c d Köbler, Gerhard (2014), Altenglisches Wörterbuch, 4th ed., online, koeblergerhard.de/wikiling, p. s.v. mūþ
  6. ^ Ringe, Don; Taylor, Ann (2014), The Development of Old English, A Linguistic History of English II, Oxford: Oxford University Press, p. 140
  7. ^ Hogg, Richard M. (1992), A Grammar of Old English, vol. 1: Phonology, Oxford: Blackwell, p. § 3.14
  8. ^ a b Gneuss, Helmut; Lapidge, Michael (2014), Anglo-Saxon Manuscripts: A Bibliographical Handlist of Manuscripts and Manuscript Fragments Written or Owned in England up to 1100, Toronto: University of Toronto Press, p. 329
  9. ^ a b c d Healey, Antonette diPaolo; Price Wilkin, John; Xiang, Xin, eds. (2009), Dictionary of Old English Web Corpus, Toronto: Dictionary of Old English Project
  10. ^ a b c d e Bosworth, Joseph; Toller, T. Northcote (1898), An Anglo-Saxon Dictionary, Oxford: Clarendon Press; Toller, T. Northcote (1921), Supplement, p. 702
  11. ^ Bosworth, Joseph; Toller, T. Northcote (1898), An Anglo-Saxon Dictionary, Oxford: Clarendon Press; Toller, T. Northcote (1921), Supplement, p. Suppl. 643
  12. ^ Liebermann, F. (1906), Die Gesetze der Angelsachsen, vol. II.1: Wörterbuch, Halle: Niemeyer, p. 151
  13. ^ Kurath, Hans; Kuhn, Sherman M.; Lewis, Robert E., eds. (1952–2001), Middle English Dictionary, Ann Arbor: University of Michigan Press; online edition ed. Frances McSparran et al. (2000–2018)
  14. ^ Gneuss, Helmut; Lapidge, Michael (2014), Anglo-Saxon Manuscripts: A Bibliographical Handlist of Manuscripts and Manuscript Fragments Written or Owned in England up to 1100, Toronto: University of Toronto Press, p. 499
  15. ^ Gneuss, Helmut; Lapidge, Michael (2014), Anglo-Saxon Manuscripts: A Bibliographical Handlist of Manuscripts and Manuscript Fragments Written or Owned in England up to 1100, Toronto: University of Toronto Press, p. 223
  16. ^ Gneuss, Helmut; Lapidge, Michael (2014), Anglo-Saxon Manuscripts: A Bibliographical Handlist of Manuscripts and Manuscript Fragments Written or Owned in England up to 1100, Toronto: University of Toronto Press, p. 407

Related etymologies

  • hearpe · also from Proto-West Germanic
  • lippa · also from Proto-West Germanic
  • ceorfan · also from Proto-West Germanic
  • felan · also from Proto-West Germanic
  • grund · also from Proto-West Germanic
  • morgen · also from Proto-West Germanic
  • bi · also from Proto-West Germanic
  • hearm · also from Proto-West Germanic
Cite this entry

“Muþ.” Etymologically, 16 Nov. 2026, etymologically.com/ang/mu%C3%BE. Accessed 16 Nov. 2026.

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