Etymologically

bay

Etymology and origin of the English word bay

English has five main words spelled bay: the bark of hounds, a section of a building, the reddish-brown colour of horses, the laurel tree and the inlet of the sea, each borrowed separately from French.[1][2]

Pronunciation

bay1 barking

Confidence
Probable
Formation
Borrowing
First attested
c. 1300
Borrowed from
Old French abai via Middle English
Ultimate origin
Old French (abaier)

Etymology

The barking is inherited from Middle English bay, partly a shortening of earlier abay,[1][2] borrowed from Old French abai (“barking”), from abaier (“to bark”) or baier,[1][2] probably imitative of the sound;[1][2][4] Barnhart thinks it may have been influenced by Medieval Latin batare “to gape”.[1] Etymonline compares Greek bauzein and Latin baubārī “to bark” and English bow-wow.[5] The verb is aphetic of Middle English abayen, from Old French abaier.[2][1]

Earliest recorded meaning

The chorus of barking raised by hounds in close conflict with the hunted animal: about 1300 in the OED and Etymonline,[6][5] in Barnhart as abay “at bay with barking dogs”, in Guy of Warwick.[1]

Semantic evolution

From the hunted animal's position comes the sense “final encounter”.[5] Turning to face the danger when escape is impossible gave the phrase at bay, from about 1314.[5][6] To keep at bay, of the hunted animal holding off the hounds, is from about 1532,[6] and in the figurative sense of holding something at a distance it is still common.[7][8] The verb, to bark, is from the late 14th century;[5] Barnhart finds bayen in Sir Gawain and the Green Knight about 1390.[1] To bay for blood, to call loudly for punishment, is from the early 20th century.[4]

Timeline

  • c. 1300 – barking of hounds.[6][5]
  • c. 1314 – at bay.[6]
  • c. 1390 – verb, to bark.[1]
  • 1530 – a dog's deep prolonged bark.[6]
  • c. 1532 – to keep at bay.[6]
  • early 20th century – to bay for blood.[4]

Modern meaning

Noun

  1. A deep, long bark, like that of hounds.
  2. The position of a hunted animal cornered and forced to turn and fight.
  3. The position of being held off: to keep at bay.

Verb

  1. To bark or howl with a deep, long sound.
  2. To pursue with barking; to bring to bay.

bay2 section of a building

Confidence
Established
Formation
Borrowing
First attested
c. 1325
Borrowed from
Old French baee
Ultimate origin
Medieval Latin (batare)

Etymology

The section of a building is borrowed from Old French baee (“opening, hole”),[5][1] the noun use of the feminine past participle of baer (“to gape, stand open”) (later bayer),[5][1][2] from Medieval Latin batare (“to gape”), perhaps imitative.[5][1] The same verb is the source, through Old French baif “open-mouthed”, of bevel.[4]

Earliest recorded meaning

An opening in a wall, especially the space between two columns: about 1325 in the OED,[6] the late 14th century in Etymonline,[5] and probably about 1380 in Barnhart.[1]

Semantic evolution

A division of a barn is from 1557,[6] and a compartment for storage from the 1550s.[5] The idea of a recess gave the horse-bay or stall and the sick-bay of a ship, from 1582.[6] A bay window, set in a recess, is from 1405 in Barnhart[1] and the early 15th century in Etymonline.[5] The word has been somewhat confused with the bay that is an inlet of the sea.[5] A side line at a railway station is from 1906,[6] and a section of a trench from 1916.[6]

Timeline

  • c. 1325 – an opening in a wall.[6]
  • 1405 – bay window.[1]
  • 1557 – a division of a barn.[6]
  • 1582 – a recess, a sick-bay.[6]
  • 1906 – a railway siding.[6]

Modern meaning

Noun

  1. A part of a building marked off by columns or pilasters.
  2. A bay window, or a recess in a wall.
  3. A compartment set aside for a purpose, as in a barn, garage or aircraft: a loading bay.
  4. A sickbay.

Word family

  • bay window
  • sickbay

bay3 reddish-brown

Confidence
Established
Formation
Borrowing
First attested
1341
Borrowed from
Anglo-Norman bai
Ultimate origin
Latin (badius)

Etymology

The colour is borrowed from Anglo-Norman bai, Old French bai,[5][1][9] from Latin badius (“chestnut-brown”), used only of horses,[5][1][2] from Proto-Indo-European *badyo- (“yellow, brown”),[5] the source also of Old Irish buide “yellow”.[5][9]

Earliest recorded meaning

Reddish-brown: 1341 in Barnhart, through Anglo-Latin and Anglo-French;[1] Etymonline dates it to the mid-14th century, usually of horses,[5] and the OED to about 1374.[6]

Semantic evolution

The colour was generally used of horses, taking in various shades such as bright bay and blood bay, and only rarely of other things.[6] As a noun, short for a bay horse, it is from 1535.[6][5]

Timeline

  • 1341 – reddish-brown.[1]
  • 1535 – a bay horse.[6][9]

Modern meaning

Adjective

  1. Reddish-brown, especially of a horse.

Noun

  1. A reddish-brown horse, especially one with a black mane and tail.
  2. A reddish-brown colour.

bay4 laurel

Confidence
Established
Formation
Borrowing
First attested
1373
Borrowed from
Old French baie
Ultimate origin
Latin (bāca)

Etymology

The laurel is borrowed from Old French baie (“berry, seed”),[5][1][2] from Latin bāca (“berry”), also bacca,[5][1] a word of uncertain origin.[5] Barnhart takes it as probably from a non-Indo-European language and related to the name of the Thracian wine god Bacchus;[1] de Vaan finds the link with Bacchus difficult, and some linguists compare Berber *bqa “blackberry” and suggest a borrowing from a lost Mediterranean language.[5]

Earliest recorded meaning

A berry, especially that of the laurel: 1373 in Barnhart,[1] the late 14th century in Etymonline,[5] and 1398 in the OED.[6]

Semantic evolution

The word first meant only the berry.[5] It was extended to the tree itself, the bay laurel, in the 1520s in Etymonline[5] or 1530 in the OED,[6] with Barnhart dating it probably about 1425.[1] Its leaves were woven into wreaths for conquerors and poets, which gave the sense “honorary crown or garland” in the 1560s,[5][6] and so “honour, renown”.[7] The bayberry (1570s) was coined after the original sense had shifted to the tree,[5] and the bay leaf is from the 1630s in Etymonline[5] or about 1450 in Barnhart.[1]

Timeline

  • 1373 – a berry.[1]
  • 1520s – the laurel tree.[5]
  • 1564 – leaves woven into a wreath.[6]
  • 1570s – bayberry.[5]
  • 1630s – bay leaf.[5]

Modern meaning

Noun

  1. The laurel tree, Laurus nobilis, whose leaves are used in cooking.
  2. Any of various similar trees or shrubs with fragrant leaves.
  3. A wreath of laurel given as an honour; hence, fame.

Word family

  • bay leaf
  • bayberry

bay5 inlet

Confidence
Uncertain
Formation
Borrowing
First attested
1385
Borrowed from
Old French baie via Middle English
Ultimate origin
Old French (baie)

Etymology

The inlet is inherited from Middle English baye,[1] borrowed from Old French baie, of uncertain origin.[1][2] Whether the Old French word comes from Late Latin baia or from a Frisian *baga is disputed;[1] Barnhart thinks it likely that it developed from baer “to open”, from Medieval Latin batare, as Corominas suggests, and that Isidore of Seville's Late Latin baia was a mistake based on the port of Baiae in Campania.[1] Etymonline takes it from Late Latin baia, the source of Spanish and Portuguese bahia, perhaps from Iberian;[5] the Oxford Dictionary of Word Origins traces it to Old Spanish bahia, but no further.[4]

Earliest recorded meaning

An indentation of the sea into the land with a wide mouth: 1385 in the OED,[6] about 1400 in Etymonline,[5] probably before 1400 in Trevisa's translation of Higden's Polychronicon according to Barnhart.[1]

Semantic evolution

A recess in a range of hills is from 1853,[6] and in American use an arm of prairie partly surrounded by woods from 1850.[6] An indentation or projection of the land into the sea, from 1611, is now obsolete and perhaps a distinct word.[6]

Timeline

  • 1385 – an inlet of the sea.[6]
  • 1850 – an arm of prairie.[6]
  • 1853 – a recess in hills.[6]

Modern meaning

Noun

  1. A body of water partly enclosed by land, with a wide mouth to the sea; a broad inlet.
  2. An area of land partly enclosed by woodland or hills.

Usage notes

In southern English dialect, from Kent to Devon, a bay was a dam or embankment holding back water,[10][6] a sense Merriam-Webster dates to the 14th century.[9]

References

  1. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z 27 28 29 30 31 Barnhart, Robert K. (1988), The Barnhart Dictionary of Etymology
  2. ^ a b c d e f g h i Hoad, T. F., ed. (1986), The Concise Oxford Dictionary of English Etymology, Oxford: Clarendon Press
  3. ^ Jones, Daniel (2011), Cambridge English Pronouncing Dictionary, 18th ed., ed. Peter Roach, Jane Setter and John Esling, Cambridge: Cambridge University Press
  4. ^ a b c d e Cresswell, Julia (2021), Oxford Dictionary of Word Origins, 3rd ed., Oxford: Oxford University Press
  5. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z 27 28 29 30 31 32 33 34 Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  6. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z 27 28 29 30 31 32 Simpson, J. A.; Weiner, E. S. C., eds. (1989), The Oxford English Dictionary, 2nd ed., Oxford: Clarendon Press
  7. ^ a b The American Heritage Dictionary of the English Language (1992), 3rd ed., Boston: Houghton Mifflin
  8. ^ Merriam-Webster's Collegiate Dictionary (2003), 11th ed., Springfield, Mass.: Merriam-Webster
  9. ^ a b c d Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
  10. ^ Wright, Joseph, ed. (1898–1905), The English Dialect Dictionary, 6 vols., Oxford: Henry Frowde; via EDD Online 4.0, University of Innsbruck (CC BY 4.0)

Related etymologies

Cite this entry

“Bay.” Etymologically, 15 Oct. 2026, etymologically.com/en/bay. Accessed 15 Oct. 2026.

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