Etymograph

English

pen

Pen (for writing) comes from Middle English penne, from Old French penne, from Latin penna ‘feather’, ultimately PIE *peth₂- ‘to fly’.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*peth₂-1‘to rush, fly’reconstructed
  2. Proto-Indo-Europeanc. 4500–2500 BCE*péth₂r̥1‘feather, wing’reconstructed
  3. Latinc. 75 BCE–200 CEpenna1‘feather’
  4. Old Frenchc. 842–1400penne1
  5. Anglo-Normanc. 1066–1400penne1
  6. Middle Englishc. 1150–1500penne1
  7. Englishtodaypen1

attested reconstructed ? uncertain or disputed deepest recorded ancestor

  1. 1 Wiktionary, English pen

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*peth₂-Wiktionary, English pen‘to rush, fly’reconstructed
  2. Proto-Indo-Europeanc. 4500–2500 BCE*péth₂r̥Wiktionary, English pen‘feather, wing’reconstructed
  3. Latinc. 75 BCE–200 CEpennaWiktionary, English pen‘feather’
  4. Old Frenchc. 842–1400penneWiktionary, English pen
  5. Anglo-Normanc. 1066–1400penneWiktionary, English pen
  6. Middle Englishc. 1150–1500penneWiktionary, English pen
  7. EnglishtodaypenWiktionary, English pen

The story

Sense “prison” originally figurative extension to “enclosure for persons” (1845), later influenced by penitentiary (‘prison’), being analyzed as an abbreviation (1884).

Full etymology on Wiktionary

Linked words

through Proto-Indo-European *bend- ‘pointed peg, nail, edge’

pin, 1 more

Another origin of pen

  1. Proto-Germanicc. 500 BCE–200 CE*pennōreconstructedearlier origin unknown
  2. Old Englishc. 450–1150penn‘enclosure, pen’
  3. Old Englishc. 450–1150*pennian‘to close, lock, bolt’reconstructed
  4. Middle Englishc. 1150–1500pennen‘to close in, trap’
  5. Englishtodaypen

From Middle English pennen, from Old English *pennian (“to close, lock, bolt”, attested in onpennian (‘to open’)), derived from penn (see above).

Another origin of pen

  1. Proto-Indo-Europeanc. 4500–2500 BCE*peth₂-‘to fly’reconstructed
  2. Proto-Indo-Europeanc. 4500–2500 BCE*péth₂r̥ ~ pth₂én-‘feather, wing’reconstructed
  3. Proto-Italicc. 1500–700 BCE*petnāreconstructed
  4. Latinc. 75 BCE–200 CEpenna‘feather’
  5. Old Frenchc. 842–1400penne‘feather’
  6. Anglo-Normanc. 1066–1400penne
  7. Middle Englishc. 1150–1500penne‘a pen or other implement for writing’
  8. Englishtodaypen

Not related to pencil.

Today it means

noun An enclosure (enclosed area) used to contain domesticated animals, especially sheep or cattle.

Sources

Sources: Wiktionary, “pen”. By Wiktionary contributors, CC BY-SA 4.0, via kaikki.org (dump of Oct 3 2026); text adapted and restructured. Language periods are conventional ranges, not dates for this word. License.

Etymograph / Proto-Indo-European *peth₂- / pen

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