Etymologically

Etymology and origin of the English word bulge

Confidence
Established
Formation
Borrowing
First attested
c. 1230 Hali Meidenhad
Borrowed from
Old French boulge via Middle English
Ultimate origin
Latin bulga
Etymology tree
inherited borrowed derived
Latin bulga
English bulge
From the same root
English budget ← bulga

Pronunciation

  • UK: /ˈbʌldʒ/[1]
  • US: /ˈbʌldʒ/, /ˈbʊldʒ/[1]

Etymology

It is inherited from Middle English bulge, also boulge,[2] borrowed from Old French boulge, also bouge,[3][4][5][6] or directly borrowed from Latin bulga (“leather bag, knapsack”).[3][7] The Anglo-Norman noun is recorded from about 1185 for a bag or pouch.[8] The Latin word is of Gaulish origin,[3][9][5] as Festus already said, according to Klein;[10] Barnhart and Klein compare Old Irish bolg (“bag”),[6][10] bolgaim (“I swell”), Welsh bol (“belly”) and Breton bolc'h (“flax pod”),[10] and Etymonline and the American Heritage Dictionary trace it to Proto-Indo-European *bʰelǵʰ- (“to swell”).[7][11] Through the diminutive bougette the same word gave budget,[12][6] and Weekley thought it ultimately related to belly and bellows.[13] The sense "bottom of a ship's hull" is of obscure origin and is connected with bilge,[5][3] which Skeat calls a doublet of the word.[14] The verb was formed from the noun in English;[3][7][6] Merriam-Webster's Collegiate traces it instead to bolgen,[15] and Merriam-Webster Unabridged takes the verb as probably an alteration of bilge.[16] Johnson (1755) held that the verb was originally written bilge.[17]

Earliest recorded meaning

A wallet or bag, especially one of leather; a water skin: about 1230, in Hali Meidenhad,[3][2] which compares a pregnant woman's swelling belly to a water bulge.[2] Barnhart dates it probably to about 1200.[6]

Semantic evolution

The bag sense died out in the early 17th century,[3][9] and about 1400 the word was also used for a hump.[3] Its later senses of swelling and protruding presumably come from the shape of a full bag,[4][12] as with belly and bellows, which also first meant "bag".[12] At sea the word meant the bottom of a ship's hull from 1622,[3][15] now generally replaced by bilge,[3] and the verb first meant to stave in a ship's bottom (1570) or, of a ship, to strike and break its bilge (1581).[3] The verb "to swell out" is recorded from 1677 in Barnhart;[6] the OED dates it to 1679, used of a wall that leans out beyond its base;[3] Etymonline dates the noun "a rounded protuberance" by the 1620s,[7] the OED from 1741.[3] American slang gave to have the bulge on, to have the advantage over (1841),[3][18] and the 20th century added the bulging part of a military front (1927), a temporary rise in numbers, as of school-age children after a rise in the birth rate (1930), and the central part of a spiral galaxy (1943).[3] The Battle of the Bulge was the German counteroffensive of 1944 in Belgium.[19] In dialect, from Ireland to Somerset, the verb could also mean to batter something out of shape or dent it.[20]

Timeline

  • c. 1230 – a leather bag or pouch (obsolete by 1623).[3][2]
  • c. 1400 – a hump (obsolete).[3]
  • 1570 – verb, to stave in the bottom of a ship.[3]
  • 1622 – the bottom of a ship's hull.[3][15]
  • 1679 – verb, to swell out, especially of a wall.[3] Barnhart dates the verb to 1677.[6]
  • 1741 – a rounded protuberance.[3]
  • 1841 – slang, the advantage, as in to have the bulge on.[3]
  • 1927 – a salient in a military front.[3]
  • 1930 – a temporary increase in numbers.[3]
  • 1943 – in astronomy, the central part of a spiral galaxy.[3]

Meanings

Noun

  1. An outward curve or swelling on a surface: a bulge in the plaster where the pipe burst.[19][11][16]
  2. A sudden, usually temporary rise in number or volume, especially of population: a bulge in college applications.[19][11][3]
  3. A part of an army's front line that projects into enemy territory; a salient.[19][3][16]
  4. (nautical) The bilge of a ship.[11][16][3]
  5. (slang, originally US) The advantage or upper hand, in to have the bulge on.[3][18]
  6. (astronomy) The rounded central part of a spiral galaxy.[3]

Verb

  1. To swell or curve outward; to protrude: Her bag bulged with library books.[11][19][16]
  2. To cause to swell outward.[11][16][3]
  3. (archaic) To stave in the bottom of a ship.[16][3]

Word family

  • bulginess
  • bulgy
  • bulgingly
  • outbulge

References

  1. ^ a b 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 Oxford English Dictionary Online (accessed March 2026), Oxford: Oxford University Press
  4. ^ a b Stevenson, Angus, ed. (2010), Oxford Dictionary of English, 3rd ed., Oxford: Oxford University Press
  5. ^ a b c Hoad, T. F., ed. (1986), The Concise Oxford Dictionary of English Etymology, Oxford: Clarendon Press
  6. ^ a b c d e f g Barnhart, Robert K. (1988), The Barnhart Dictionary of Etymology
  7. ^ a b c d Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  8. ^ Anglo-Norman Dictionary (AND2), Aberystwyth University, anglo-norman.net (2nd ed., 2005–)
  9. ^ a b Shorter Oxford English Dictionary on Historical Principles (2002), 5th ed., ed. William R. Trumble and Angus Stevenson, Oxford: Oxford University Press
  10. ^ a b c Klein, Ernest. A Comprehensive Etymological Dictionary of the English Language. 2 vols. Amsterdam: Elsevier, 1966–1967.
  11. ^ a b c d e f The American Heritage Dictionary of the English Language (online 2024), 5th ed., Boston: Houghton Mifflin Harcourt
  12. ^ a b c Ayto, John (2005), Word Origins: The Secret Histories of English Words from A to Z, 2nd ed., London: A & C Black
  13. ^ Weekley, Ernest (1921), An Etymological Dictionary of Modern English, London: John Murray
  14. ^ Skeat, Walter W. (1911), A Concise Etymological Dictionary of the English Language, new ed., Oxford: Clarendon Press
  15. ^ a b c Merriam-Webster's Collegiate Dictionary (2003), 11th ed., Springfield, Mass.: Merriam-Webster
  16. ^ a b c d e f g Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
  17. ^ Johnson, Samuel (1755), A Dictionary of the English Language, London; 4th ed. 1773; Johnson's Dictionary Online, ed. Beth Rapp Young et al.
  18. ^ a b Green, Jonathon (2010), Green's Dictionary of Slang, London: Chambers; digital ed. 2016–, https://greensdictofslang.com
  19. ^ a b c d e Collins English Dictionary (2023), Glasgow: HarperCollins
  20. ^ 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

“Bulge.” Etymologically, 1 Nov. 2026, etymologically.com/en/bulge. Accessed 1 Nov. 2026.

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