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Etymology and origin of the English word keel

Pronunciation

keel1 flat-bottomed barge

Confidence
Probable
Formation
Borrowing
First attested
1322 Tynemouth Chartulary
Borrowed from
Middle Dutch kiel via Middle English
Ultimate origin
Proto-Germanic *keulaz

Etymology

The word for the barge is inherited from Middle English kele,[2] apparently borrowed from Middle Dutch kiel (“ship, boat”),[3][4][5][6][7][8] also Middle Low German kēl.[6][5] The Middle Dutch word goes back to Proto-Germanic *keulaz,[6][9] which also gave Old English cēol (“ship”),[3][6][10] Old Saxon kiol, Old High German kiol and Old Norse kjóll.[3][6][9] Klein calls the Germanic word of uncertain origin.[7] Merriam-Webster and Orel compare Ancient Greek γαυλός (gaulós, “milk pail”) and γαῦλος (gaûlos, “a kind of merchant ship”), which Klein and Orel think may come from a Semitic word.[7][4][9] The OED and Weekley hold that these words cannot be connected with Old Norse kjǫlr, the source of keel2;[3][8] Partridge thinks the barge word and the ship's keel may be ultimately one,[11] and Etymonline, which reports that Barnhart calls them cognate, adds that they have influenced each other or partly merged.[12] In Dutch and German, kiel has since the 16th century lost the sense "ship" and come to mean the ship's keel.[3][8]

Earliest recorded meaning

A flat-bottomed boat used for loading ships, a lighter: the OED's first record is the Tynemouth Chartulary of 1322.[3] The Middle English Dictionary has the form chiel in an Anglo-Norman document from before 1216, and le Keel as a ship's name in 1319;[2] Etymonline dates the word to about 1200.[12]

Semantic evolution

The word belonged to the coal trade of the north-east: a keel was the flat-bottomed boat of the Tyne and the Wear that carried coal down to the colliers,[3][4][8] and in 1421 a statute fixed its load at twenty chaldrons.[2] From 1750 it was also the load itself, a unit of weight for coal, later eight Newcastle chaldrons or about 21 tons.[3][4] From 1605, in Verstegan, historians used keel to render Old English ceol in the Anglo-Saxon Chronicle's account of the coming of the Angles, as the name of their ships.[3][12] Merriam-Webster likewise records the sense of a long ship of the early Norsemen.[4] Etymonline notes that the word is still used locally for a flat-bottomed boat in England, especially on the Tyne, and in the United States.[12] A verb keel, to carry in a keel, appears once, in Nashe (1599).[3]

Timeline

  • 1322 – a flat-bottomed vessel, a lighter.[3]
  • 1421 – keels of twenty chaldrons in a statute.[2]
  • 1599 – verb, to carry in a keel (obsolete).[3]
  • 1605 – the ships of the Anglo-Saxon invaders.[3][12]
  • 1750 – the quantity of coal a keel carries.[3]

Meanings

Noun

  1. (chiefly historical) A flat-bottomed barge, especially one used on the Tyne and Wear to carry coal to ships.[4][3][5]
  2. A keel-load of coal, a British unit of weight of about 21 tons.[4][3]
  3. A long ship of the early Anglo-Saxons or Norsemen.[4][3]

Word family

  • keelman

keel2 bottom timber of a ship

Confidence
Probable
Formation
Borrowing
First attested
1338
Borrowed from
Old Norse kjǫlr via Middle English
Ultimate origin
Proto-Germanic *keluz

Etymology

The word for a ship's keel is inherited from Middle English kele, first spelled kelle,[13] probably borrowed from Old Norse kjǫlr,[3][12][13][6][5][4] cognate with Danish kjøl and Swedish köl.[3][12] The Norse word goes back to Proto-Germanic *keluz,[13][6][9] and Barnhart names as cognates Middle Low German kil, Dutch kiel and German Kiel.[13] Orel and Barnhart relate it to words for the throat, ceole and kela, and so to Proto-Indo-European *gel- (“to swallow”);[9][13] Etymonline gives the root as Watkins's *gʷel- (“to swallow”), the source of gullet,[12] while Köbler calls the word of unknown origin.[14] The OED and Weekley keep it apart from the Dutch and German kiel (“ship”) behind keel1,[3][8] and note that its senses were influenced by Latin carīna (“keel, hull, ship”).[3] French quille, recorded at Rouen in 1382, was probably also from Old Norse, and Spanish quilla and Italian chiglia may be from French.[3] Weekley thinks the German and Dutch word took the sense of a ship's keel from English.[8] The verb was formed from the noun in American English in 1828.[13][3]

Earliest recorded meaning

The lowest lengthwise timber of a ship or boat, on which the framework is built: Barnhart's first record is kelle in 1338, and kele from 1410;[13] the OED's first date is 1352,[3] and Etymonline gives the mid-14th century.[12]

Semantic evolution

Under the influence of Latin carina the word was used poetically for a whole ship (before 1547, in Surrey's Virgil).[3] On an even keel, of a ship lying level, is recorded from the 1560s[12][3] and later stood for steadiness in general.[12][15] From 1597, in Gerard's Herball, keel was any central ridge of a leaf or other part,[3][6] and botanists and zoologists then applied it to the boat-shaped lower petals of a pea flower (1776) and the ridge of a bird's breastbone (1767).[3] The aircraft age added the keel of an airship (1888) and of a flying boat (1920).[3] The verb is American: Webster's dictionary of 1828 records keel over, to turn keel upwards,[3][13] Etymonline has it for a ship capsizing in 1829 and for people or game falling over from 1833,[12] and the OED records to keel over, to fall as if from a shock, before 1860.[3] In slang keel could mean the buttocks (1960, in Wodehouse), and Americans called an unbalanced person off one's keel (1940s).[16] The punishment of keelhauling, dragging a sailor under a ship's keel, comes from Dutch kielhalen and is recorded from the 17th century, in Captain John Smith.[6][8]

Timeline

  • 1338 – kelle, the bottom timber of a ship.[13][3]
  • before 1547 – poetically, a ship.[3]
  • 1560s – on an even keel.[12][3]
  • 1597 – a central ridge of a leaf or similar structure.[3]
  • 1726 – the bottom or underside of anything.[3]
  • 1767 – the ridge of a bird's breastbone.[3]
  • 1776 – the two lowest petals of a pea flower.[3]
  • 1807 – verb, to plough the sea with a keel.[3]
  • 1828 – verb, keel over, to turn keel upwards.[3][13]
  • 1833 – keel over, to tumble or fall.[12]
  • 1867 – verb, of a ship, to roll on its keel.[3][17]
  • 1883 – a yacht with a fixed keel.[3]
  • 1888 – the keel of an airship.[3]

Meanings

Noun

  1. The main lengthwise timber or steel structure along the bottom of a ship or boat, to which the frames are fixed, often projecting to give stability: The yacht's keel scraped the sandbar.[15][4][3]
  2. on an even keel: steady and well balanced.[15][3]
  3. A part of anything resembling a ship's keel, such as the lower lengthwise member of an airship or fuselage.[15][3]
  4. (biology) A ridge on an organ, such as the breastbone of a bird or the lower petals of a pea flower; a carina.[15][4][3]
  5. (poetic) A ship.[15][3]

Verb

  1. keel over: to turn over or capsize; to fall over or faint: Two of the marchers keeled over in the heat.[15][4][3]
  2. To cause to turn over or capsize.[4][3]

Word family

  • keeled
  • keelless
  • keelhaul
  • bilge keel
  • fin keel
  • keelson

Usage notes

Two other words spelled keel survive only in dialect.[3][4] One is an old verb meaning to cool, from Old English cēlan, related to cool;[3][4][12][7] it is best known from Shakespeare's line about greasy Joan who "doth keel the pot", which Johnson took to mean cooling it.[18][4] The other, chiefly Scottish, is a red ochre used for marking sheep, timber and yarn, recorded from 1480 and of uncertain origin.[3][4][5][19]

References

  1. ^ Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d 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)
  3. ^ 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 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 Oxford English Dictionary Online (accessed March 2026), Oxford: Oxford University Press
  4. ^ a b c d e f g h i j k l m n o p q Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
  5. ^ a b c d e Shorter Oxford English Dictionary on Historical Principles (2002), 5th ed., ed. William R. Trumble and Angus Stevenson, Oxford: Oxford University Press
  6. ^ a b c d e f g h i Hoad, T. F., ed. (1986), The Concise Oxford Dictionary of English Etymology, Oxford: Clarendon Press
  7. ^ a b c d Klein, Ernest. A Comprehensive Etymological Dictionary of the English Language. 2 vols. Amsterdam: Elsevier, 1966–1967.
  8. ^ a b c d e f g Weekley, Ernest (1921), An Etymological Dictionary of Modern English, London: John Murray
  9. ^ a b c d e Orel, Vladimir (2003), A Handbook of Germanic Etymology, Leiden / Boston: Brill
  10. ^ Bosworth, Joseph; Toller, T. Northcote (1898), An Anglo-Saxon Dictionary, Oxford: Clarendon Press; Toller, T. Northcote (1921), Supplement
  11. ^ Partridge, Eric (1966), Origins: A Short Etymological Dictionary of Modern English, 4th ed., London: Routledge & Kegan Paul
  12. ^ a b c d e f g h i j k l m n o Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  13. ^ a b c d e f g h i j Barnhart, Robert K. (1988), The Barnhart Dictionary of Etymology
  14. ^ Köbler, Gerhard (2014), Germanisches Wörterbuch, 5th ed., online, koeblergerhard.de/wikiling
  15. ^ a b c d e f g Collins English Dictionary (2023), Glasgow: HarperCollins
  16. ^ Green, Jonathon (2010), Green's Dictionary of Slang, London: Chambers; digital ed. 2016–, https://greensdictofslang.com
  17. ^ Smyth, W. H. (1867), The Sailor's Word-Book: An Alphabetical Digest of Nautical Terms, London: Blackie and Son
  18. ^ Johnson, Samuel (1755), A Dictionary of the English Language, London; 4th ed. 1773; Johnson's Dictionary Online, ed. Beth Rapp Young et al.
  19. ^ 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

“Keel.” Etymologically, 1 Nov. 2026, etymologically.com/en/keel. Accessed 1 Nov. 2026.

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