Etymograph

English

feather

Feather comes from Middle English fethere ‘a wing feather’, and goes back to Proto-Indo-European *peth₂- ‘to fly’.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*peth₂-1‘to fly’reconstructed
  2. Proto-Indo-Europeanc. 4500–2500 BCE*péth₂r̥1‘feather’reconstructed
  3. Proto-Germanicc. 500 BCE–200 CE*feþrō1reconstructed
  4. Proto-West Germanicc. 200–500 CE*feþru1reconstructed
  5. Old Englishc. 450–1150feþer1
  6. Middle Englishc. 1150–1500fethere1‘a wing feather’
  7. Englishearliest quotation c. 1605–1608feather1

attested reconstructed ? uncertain or disputed deepest recorded ancestor

  1. 1 Wiktionary, English feather
  2. Earliest quotation in Wiktionary’s entry: c. 1605–1608, William Shakespeare, The Life of Tymon of Athens: “I am not of that feather to shake off…”.

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*peth₂-Wiktionary, English feather‘to fly’reconstructed
  2. Proto-Indo-Europeanc. 4500–2500 BCE*péth₂r̥Wiktionary, English feather‘feather’reconstructed
  3. Proto-Germanicc. 500 BCE–200 CE*feþrōWiktionary, English featherreconstructed
  4. Proto-West Germanicc. 200–500 CE*feþruWiktionary, English featherreconstructed
  5. Old Englishc. 450–1150feþerWiktionary, English feather
  6. Middle Englishc. 1150–1500fethereWiktionary, English feather‘a wing feather’
  7. Englishearliest quotation c. 1605–1608featherWiktionary, English feather. Earliest quotation in Wiktionary’s entry: c. 1605–1608, William Shakespeare, The Life of Tymon of Athens: “I am not of that feather to shake off…”

The story

The sense correlated with splines and keys (noun sense 4) probably reflects analogy with the fletching sense (noun sense 3).

Full etymology on Wiktionary

Linked words

pairs

  • feather and helicopter both from Proto-Indo-European *peth₂- ‘to fly’

through Proto-Indo-European *peth₂- ‘to fly’

pass, mile, expansion, compete, pen, expand, petition, repeat, patent, competitor, symptom, perpetual, spawn, impetus, expanse, pennant, perpetuate, petulant, perpetuity, pinion, impetuous, patina, patella, penna, pata, petulance, 83 more

through Proto-Indo-European *péth₂r̥ ‘feather, wing’

22 more

Today it means

noun A branching, hair-like structure that grows on the bodies of birds, used for flight, swimming, protection and display.

Sources

Sources: Wiktionary, “feather”. 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- / feather

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