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spanner

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Etymology and origin of the English word spanner

Confidence
Established
Formation
Borrowing
First attested
1639 R. Ward, Animadversions of Warre More words from the 17th century
Borrowed from
German Spanner
Ultimate origin
Proto-Indo-European *(s)pen-

Pronunciation

  • UK: /ˈspænə/[1]
  • US: /ˈspænɚ/[1]

Etymology

It is borrowed from German Spanner,[2][3][4][5][6] a derivative of spannen (“to stretch, draw tight”),[6][5][7][8] from Old High German spannan,[4][6] from Proto-Germanic *spannaną,[3][9] from Proto-Indo-European *(s)pen- (“to draw, stretch, spin”),[3][4] the root also of spin and span.[3] The OED compares Swedish spännare.[2] Dictionary.com instead analyses the word as English span with -er.[10]

Earliest recorded meaning

An instrument for winding up the spring of a wheel-lock firearm: 1639, in R. Ward's Animadversions of Warre,[2] and in the 1630s in Etymonline.[3]

Semantic evolution

The first spanner wound up, or spanned, the spring of a wheel lock.[2][3] Johnson (1755), following Bailey, took it for the lock of a fusee or carabine itself, and quoted Howell's "buff-coats, spanners, and musket-rests".[11] From 1773 the word was used in mechanics for a bar or lever that opens the valves of a steam engine,[2][5] which is the sense Merriam-Webster Unabridged dates first.[6] The meaning that survives, a hand tool that grips a nut or bolt, is recorded from 1790, in W. Marshall.[2][3] In American English the tool is a wrench, and Merriam-Webster Unabridged labels this sense chiefly British.[6] The image of a tool thrown into machinery gave the figurative spanner in the works, a disruption:[3][2] Etymonline finds it by 1920,[3] Green's Dictionary of Slang quotes threw a spanner into the prettiest little scenario from Wodehouse in 1923,[12] and the OED's first quotation is Wodehouse's of 1934.[2] Later slang made the tool a type of uselessness: a bag of spanners, something very unattractive or useless, from 1976,[2] and spanner, a fool, from 1987.[12]

Timeline

  • 1639 – a tool for winding the spring of a wheel-lock firearm (obsolete by 1688).[2]
  • 1773 – a lever that opens the valves of a steam engine.[2][6]
  • 1790 – a hand tool for gripping and turning a nut or bolt.[2][3]
  • 1920 – spanner in the works, a disruption.[3] Green's Dictionary of Slang quotes it from 1923, and the OED from 1934.[12][2]
  • 1976 – a bag of spanners, a thing or person that is very unattractive or useless.[2]
  • 1987 – slang, a fool.[12]

Meanings

Noun

  1. (chiefly British) A hand tool with jaws or a shaped opening that fits over a nut or bolt head to turn it; a wrench: She tightened the wheel nuts with a spanner.[7][6][2]
  2. (informal, chiefly British) throw a spanner in the works: to disrupt something that was running smoothly.[7][2]
  3. A bar or lever that moves the valves of a steam engine.[6][2][5]
  4. (slang) A fool or unpleasant person.[12]
  5. (obsolete, 1639–1688) A tool for winding the spring of a wheel-lock firearm.[2][5][6]

Word family

  • adjustable spanner

Usage notes

A rare spanner for a rib or brace spanning a roof, recorded from 1862 in Macmillan's Magazine, is formed from the verb span with -er,[2][5] and Merriam-Webster Unabridged has a horizontal cross brace or collar beam.[6] The OED also has another spanner, recorded only in a title of 1653, whose origin and meaning it calls obscure.[2]

References

  1. ^ a b Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j k l m n o p q r s t Oxford English Dictionary Online (accessed March 2026), Oxford: Oxford University Press
  3. ^ a b c d e f g h i j k Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  4. ^ a b c The American Heritage Dictionary of the English Language (online 2024), 5th ed., Boston: Houghton Mifflin Harcourt
  5. ^ a b c d e f 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 j Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
  7. ^ a b c Collins English Dictionary (2023), Glasgow: HarperCollins
  8. ^ Stevenson, Angus, ed. (2010), Oxford Dictionary of English, 3rd ed., Oxford: Oxford University Press
  9. ^ Köbler, Gerhard (2014), Germanisches Wörterbuch, 5th ed., online, koeblergerhard.de/wikiling
  10. ^ Dictionary.com Unabridged (2016), based on the Random House Unabridged Dictionary, New York: Random House
  11. ^ Johnson, Samuel (1755), A Dictionary of the English Language, London; 4th ed. 1773; Johnson's Dictionary Online, ed. Beth Rapp Young et al.
  12. ^ a b c d e Green, Jonathon (2010), Green's Dictionary of Slang, London: Chambers; digital ed. 2016–, https://greensdictofslang.com

Related etymologies

Cite this entry

“Spanner.” Etymologically, 6 Nov. 2026, etymologically.com/en/spanner. Accessed 6 Nov. 2026.

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