Etymologically

cock

Etymology and origin of the English word cock

English has two main words spelled cock: the male bird, with its many mechanical and slang senses, and a small pile of hay.[1][2][3]

Pronunciation

  • IPA: /kɒk/ (UK); /kɑk/ (US)[4]

cock1 male bird; tap

Confidence
Established
Formation
Inherited, Onomatopoeia
First attested
c. 897
Inherited from
Old English cocc
Ultimate origin
Old English (cocc)

Etymology

The bird is inherited from Old English cocc (“male bird”),[1][2][5][3] of imitative origin,[1][2][6] like Old Norse kokkr, Old French coc and Sanskrit कुक्कुट (kukkuṭa, “cock”);[1][2] Hoad derives the Old English word from Medieval Latin coccus, reinforced by French coq.[5] The native Germanic name survives in hen.[5][2]

Earliest recorded meaning

The male of the domestic fowl: about 897, in Alfred's translation of Gregory's Pastoral Care.[1][7]

Semantic evolution

Old English cocc was a nickname for one who strutted, and in the Middle Ages a cock was a pert boy or servant, then a fellow, as in old cock (1630s).[2][8] Technical senses, such as a tap (about 1425) and the hammer of a gun (1560s), are of uncertain connection with the bird;[1][2] German Hahn has the same range.[5][2] The verb, to fight (about 1150), led to the senses swagger (1575) and set or turn up jauntily (about 1600), as in cock one's ear.[1][2] To draw back the hammer of a gun is from the 1640s, and half-cocked by 1750.[2] The penis is a slang sense from the Middle Ages,[6] and Green notes that it became taboo in the 19th century.[8] A cock-and-bull story is from the 1620s.[2]

Timeline

  • c. 897 – a rooster.[1][7]
  • c. 1425 – a tap.[1]
  • 1560s – the cock of a gun.[2]
  • c. 1600 – to turn up, as an ear.[1]
  • 1620s – cock-and-bull.[2]

Modern meaning

Noun

  1. An adult male chicken; a rooster.
  2. The male of other birds.
  3. A tap or valve controlling the flow of a liquid.
  4. The hammer of a firearm, or its position when ready to fire.
  5. (vulgar slang) The penis.
  6. (British informal) A form of address to a man; mate.

Verb

  1. To raise the hammer of a gun ready to fire.
  2. To tilt or turn up: cock one's head.

Word family

  • cocky
  • cockerel
  • cockpit
  • peacock
  • cocktail

cock2 small heap of hay

Confidence
Uncertain
Formation
Inherited
First attested
before 1398

Etymology

The haycock is of uncertain origin, probably related to dialectal German Kocke (“heap of hay or dung”) and Norwegian kok, heap.[1][3]

Earliest recorded meaning

A cone-shaped pile of hay in a field: before 1398, in Trevisa's translation of Bartholomew.[1]

Semantic evolution

The verb, to put hay into cocks, is probably from before 1387.[1]

Timeline

  • before 1387 – to put hay into cocks.[1]
  • before 1398 – a haycock.[1]

Modern meaning

Noun

  1. A small conical pile of hay in a field.

Word family

  • haycock

Usage notes

A further obsolete cock, a small boat, survives only in cockboat and coxswain.[9] Green's Dictionary of Slang also records cock as a euphemism for God in oaths (about 1350).[8]

References

  1. ^ a b c d e f g h i j k l m n o Barnhart, Robert K. (1988), The Barnhart Dictionary of Etymology
  2. ^ a b c d e f g h i j k l m Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  3. ^ a b c Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
  4. ^ Wiktionary, the free dictionary, https://en.wiktionary.org
  5. ^ a b c d Hoad, T. F., ed. (1986), The Concise Oxford Dictionary of English Etymology, Oxford: Clarendon Press
  6. ^ a b Cresswell, Julia (2021), Oxford Dictionary of Word Origins, 3rd ed., Oxford: Oxford University Press
  7. ^ a b Simpson, J. A.; Weiner, E. S. C., eds. (1989), The Oxford English Dictionary, 2nd ed., Oxford: Clarendon Press
  8. ^ a b c Green, Jonathon (2010), Green's Dictionary of Slang, London: Chambers; digital ed. 2016–, https://greensdictofslang.com
  9. ^ Shorter Oxford English Dictionary on Historical Principles (2002), 5th ed., ed. William R. Trumble and Angus Stevenson, Oxford: Oxford University Press

Related etymologies

  • thou · also from Old English
  • shade · also from Old English
  • hammer · also from Old English
  • ash · also from Old English
  • yield · also from Old English
  • shy · also from Old English
  • earl · also from Old English
  • crop · also from Old English
Cite this entry

“Cock.” Etymologically, 16 Oct. 2026, etymologically.com/en/cock. Accessed 16 Oct. 2026.

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