Etymologically

main

Etymology and origin of the English word main

Confidence
Established
Formation
Inherited
First attested
c. 725 (Old English mægen-, Beowulf)
Inherited from
Old English mægen via Middle English
Ultimate origin
Proto-Germanic (*maginą)

Pronunciation

  • IPA: /meɪn/[1]

Etymology

It is inherited from Middle English main, inherited from Old English mægen (“power, bodily strength, force”),[2][3][4] from Proto-Germanic *maginą (“power”),[2] formed from the Germanic base meaning “to have power” that gave may.[4][5][3] Etymonline traces it to Proto-Indo-European *magh- (“to be able, have power”).[2][6] The adjective comes from the combining form mægen- in Old English compounds such as mægenstrengo (“great strength”),[5][2] partly influenced by the related Old Norse megenn (“strong, powerful”).[2][4][7][3] Its cognates include Old Saxon megin and Old High German magan (“strength”).[3][4]

Earliest recorded meaning

Physical strength or force: Old English mægen;[8][2] the adjective appears in Old English compounds in Beowulf, about 725.[3]

Semantic evolution

The original sense of the noun survives only in with might and main.[2][4] In Old English mægen also meant a host or military force.[8] The adjective meant “large, strong” in the early 13th century, and probably before 1200 in Layamon,[2][3] a sense now obsolete except in by main force.[4] “Chief, principal” is from about 1400,[2] or 1480 in the Historical Thesaurus,[9] and “chief in size or extent” from the 1590s.[2] The noun came to mean the mainland from 1555,[8] the open ocean from 1579,[8] the chief part of something from about 1600,[2] and the principal pipe for water or gas later still.[10] The main chance, from the game of hazard, is from the 1570s,[2] and main course at a meal from 1829.[2] The Spanish Main is named from 1890 in the OED's record.[8]

Timeline

  • c. 725 – Old English mægen- in compounds (Beowulf).[3]
  • before 1200 – adjective, outstanding in size (Layamon).[3]
  • c. 1400 – adjective, chief, principal.[2]
  • 1555 – the mainland.[8]
  • 1570s – the main chance.[2]
  • 1579 – the open sea.[8]
  • c. 1600 – the chief part.[2]
  • 1829 – main course.[2]

Modern meaning

Adjective

  1. Most important; principal.
  2. Exerted to the utmost; sheer: by main force.
  3. (grammar) Of the principal clause of a sentence.
  4. (nautical) Of or near the mainmast.

Noun

  1. The principal pipe or line in a system carrying water, gas or electricity.
  2. The chief or largest part: in the main.
  3. Physical strength: with might and main.
  4. (archaic) The mainland, or the open ocean.

Word family

  • mainsail
  • mainly
  • mainstream
  • mainstay
  • mainframe
  • amain
  • mainer
  • mainland

Usage notes

Two other nouns main are rare: one, in Scotland and the north, means a home farm (the mains of a house), shortened from domain;[4][8] the other, probably from main chance, is a number called in the dice game of hazard and a match between fighting cocks.[4][8][11]

References

  1. ^ Jones, Daniel (2011), Cambridge English Pronouncing Dictionary, 18th ed., ed. Peter Roach, Jane Setter and John Esling, Cambridge: Cambridge University Press
  2. ^ a b c d e f g h i j k l m n o p q Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  3. ^ a b c d e f g h Barnhart, Robert K. (1988), The Barnhart Dictionary of Etymology
  4. ^ a b c d e f g h Shorter Oxford English Dictionary on Historical Principles (2002), 5th ed., ed. William R. Trumble and Angus Stevenson, Oxford: Oxford University Press
  5. ^ a b Hoad, T. F., ed. (1986), The Concise Oxford Dictionary of English Etymology, Oxford: Clarendon Press
  6. ^ The American Heritage Dictionary of the English Language (2000), 4th ed., Boston: Houghton Mifflin
  7. ^ Soanes, Catherine; Stevenson, Angus, eds. (2004), Concise Oxford English Dictionary, 11th ed., Oxford: Oxford University Press
  8. ^ a b c d e f g h i Simpson, J. A.; Weiner, E. S. C., eds. (1989), The Oxford English Dictionary, 2nd ed., Oxford: Clarendon Press
  9. ^ Kay, Christian; Roberts, Jane; Samuels, Michael; Wotherspoon, Irené, eds. (2009), Historical Thesaurus of the Oxford English Dictionary, Oxford: Oxford University Press; online edition (2024)
  10. ^ The American Heritage Dictionary of the English Language (1992), 3rd ed., Boston: Houghton Mifflin
  11. ^ 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

  • pool · also from Old English
  • feed · also from Old English
  • cook · also from Old English
  • bird · also from Old English
  • thousand · also from Old English
  • talent · also from Old English
  • lay · also from Old English
  • fill · also from Old English
Cite this entry

“Main.” Etymologically, 15 Oct. 2026, etymologically.com/en/main. Accessed 15 Oct. 2026.

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