Etymologically

Etymology and origin of the Old English word fæþm

Confidence
Established
Formation
Inherited
First attested
800–850 Corpus Glossary More words from the 8th century
Inherited from
Proto-West Germanic *faþm
Ultimate origin
Proto-Germanic *faþmaz
Etymology tree
inherited borrowed derived
Old English fæþm
English fathom
From the same root
English unfathomable ← fathom

Pronunciation

  • /fæθm/, [fæðm][1]

Forms

fæþm m (nominative plural fæþmas) (strong a-stem)[1] In prose it is also feminine, genitive fæðme.[2] The Corpus Glossary spells it faethm and faeðm.[3][4]

Etymology

It is inherited from Proto-West Germanic *faþm, from Proto-Germanic *faþmaz (“outstretched arms; embrace; fathom”).[1] The noun is shared by Old Norse faðmr, Old Frisian fethm, Old Saxon fathmos (plural, "the two outstretched arms") and Old High German fadam, fadum.[5][6][7]

Kroonen calls it a formation shared by Germanic and Celtic, matching Old Welsh etem and Welsh edau (“thread”); it is usually derived from the root Proto-Indo-European *peth₂- (“to spread”) of Ancient Greek πετάννυμι (petánnumi, “to spread out”).[5] Orel connects the same Welsh words and, with some difficulty, Proto-Slavic *pasmę (“bundle of thread”).[6] Köbler gives the root as Proto-Indo-European *pet- (“to spread out”).[7] The sense would have moved from spreading out the arms to an embrace or armful and then to the measure of the outstretched arms.[1]

Earliest recorded meaning

The word is first recorded in the Corpus Glossary, a manuscript of the first half of the ninth century.[3][4] There faethm glosses Latin “gremium” “lap”, and faeðm uel tuegen stridi “a fathom or two strides” glosses “passus”.[4][8]

Semantic evolution

In poetry the word is the embracing arms, as when angels bear a soul engla fæðmum “in the arms of angels”, and then what embraces or holds something: a lap, bosom, womb or the hold of a ship, and figuratively a grasp or power.[2][9] Most of its records are in verse.[4] In glosses and prose it is also the forearm and a measure of length, a cubit, and the reach of the outstretched arms, a fathom; one glossary has it for a closed fist.[8] Köbler records it for Latin “cubitum”, “gremium”, “passus” and “sinus”.[7]

In Middle English fadme it was a measure of about six feet and a depth in sounding; it is English fathom.[10][11]

Timeline

  • s. ix¹ – faethm glossing “gremium” and faeðm glossing “passus” in the Corpus Glossary.[3][4]
  • s. x² – on flodes fæðm “into the embrace of the flood” in Andreas (Vercelli Book).[12][4]
  • s. x² – in fæmnan fæðm “into a virgin's womb”, of Christ, in Christ (Exeter Book).[13][4][2]
  • s. x/xi – to Fæder fæþmum “into the Father's arms” in the Beowulf manuscript.[14][9][2]
  • c. 1175 – ane feðme længre “one fathom longer” in a copy of an Old English text (Bodley 343).[10]

Meanings

Noun

  1. the outstretched or embracing arms; an embrace.[2][9]
  2. what encloses something: a lap, bosom, breast, womb; the interior.[2][7]
  3. (poetic) grasp, control, power.[9][1]
  4. the forearm; as a measure, a cubit.[8]
  5. the reach of the outstretched arms, a fathom.[8]
  6. (glosses) a closed hand, fist.[8]

Word family

  • fæþmian
  • sīdfæþme

Descendants

References

  1. ^ a b c d e f Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f Bosworth, Joseph; Toller, T. Northcote (1898), An Anglo-Saxon Dictionary, Oxford: Clarendon Press; Toller, T. Northcote (1921), Supplement, p. 268
  3. ^ a b c 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. 76
  4. ^ a b c d e f g Healey, Antonette diPaolo; Price Wilkin, John; Xiang, Xin, eds. (2009), Dictionary of Old English Web Corpus, Toronto: Dictionary of Old English Project
  5. ^ a b Kroonen, Guus (2013), Etymological Dictionary of Proto-Germanic, Leiden Indo-European Etymological Dictionary Series 11, Leiden / Boston: Brill, p. 132
  6. ^ a b Orel, Vladimir (2003), A Handbook of Germanic Etymology, Leiden / Boston: Brill, p. 95
  7. ^ a b c d Köbler, Gerhard (2014), Altenglisches Wörterbuch, 4th ed., online, koeblergerhard.de/wikiling, p. s.v. fæþm
  8. ^ a b c d e Bosworth, Joseph; Toller, T. Northcote (1898), An Anglo-Saxon Dictionary, Oxford: Clarendon Press; Toller, T. Northcote (1921), Supplement, p. Suppl. 203
  9. ^ a b c d Fulk, R. D.; Bjork, Robert E.; Niles, John D., eds. (2008), Klaeber's Beowulf and The Fight at Finnsburg, 4th ed., Toronto: University of Toronto Press (glossary), p. s.v. fæþm
  10. ^ a b 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)
  11. ^ Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  12. ^ 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. 704
  13. ^ 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
  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. 344

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

“Fæþm.” Etymologically, 16 Nov. 2026, etymologically.com/ang/f%C3%A6%C3%BEm. Accessed 16 Nov. 2026.

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