conduit

Etymology

It is inherited from Middle English conduit, also condit, condut and cundit,^[2][3][4] borrowed from Old French conduit (“escort, protection; pipe, channel”),^[5][6][7][8] from Medieval Latin conductus (“a leading; a pipe, channel”),^{[6][8][9][10]} the noun use of the past participle of Latin condūcō (“to lead or bring together”),^[5][6][11] from com- (“with, together”) and dūcō (“to lead”), from Proto-Indo-European *deuk- (“to lead”).^[5] The Anglo-Norman word is recorded from the early 12th century, with senses ranging from a drain, gutter or pipe to guidance, escort and safe-conduct.^[12] The OED treats the word as a special use of conduct, which once had the three forms conduit, condit and conduct: in the other senses the Latin-looking form conduct won out, but for the channel the French form conduit was kept, while the usual pronunciation goes back to the Middle English form condit or cundit.^[7] Klein and Etymonline call conduit a doublet of conduct.^[11][5]

Earliest recorded meaning

Etymonline and Barnhart date the word to about 1300, as conduyt, in the sense "conduct, guidance, an escorting party", now kept only by conduct.^[5][6] The OED's first record of the channel sense is in the Ayenbite of Inwyt (1340), where the word is also used of a channel in the body.^[7]

Semantic evolution

The words conduit and conduct went their separate ways in meaning from the 15th century.^[5][6] In Middle English conduit was a device for bringing fresh water, such as an aqueduct, an open channel, a gutter or a pipe;^[2] Trevisa used it for the Latin aquaeductus, and it could also mean a fountain or well.^[2] The fountain sense lasted into the 19th century and is now archaic.^[7][13][14] Chaucer used the word twice, in the forms condit and condys.^[15] The general sense of a natural channel was applied to the passages of the body from 1340 until about 1830, and to channels in rock from 1839.^[7] The figurative sense of a channel by which knowledge, influence or wealth passes is recorded from before 1569 in the OED,^[7] but Etymonline dates a sense "medium or means of conveying" to the mid-14th century.^[5] Johnson (1755) defined it as a canal of pipes for carrying water, or an aqueduct.^[16] A short-lived verb conduit, to pour out like a fountain or to convey as through a conduit, was used in 1591 and 1628.^[7][13] The electrical sense, a tube protecting wires, dates from 1882.^[7] At Winchester College conduit was slang for a water tap and later for a washroom.^[17]

Timeline

• c. 1300 – conduyt, guidance, conduct, an escort (now obsolete).^[5][6]
• 1340 – an artificial channel or pipe for water; also a channel in the body.^[7]
• before 1400 – a fountain (now archaic).^[7][13]
• before 1569 – figurative, a channel through which something is conveyed.^[7]
• 1591 – the verb conduit, to pour forth like a fountain (obsolete).^[7]
• 1624 – in architecture, a passage (obsolete by 1703).^[7]
• 1839 – a natural channel in rock or in the ground.^[7]
• 1872 – in music, a short connecting passage.^[7]
• 1882 – a tube or trough protecting electric wires.^[7]

Meanings

Noun

1. A pipe or channel, natural or artificial, through which water or another fluid flows: Rainwater runs off the roof through a stone conduit.^[18][14][7]
2. A tube or duct that carries and protects electric wires or cables.^[18][7][14]
3. A means or medium by which something, such as information, money or influence, is passed on: The charity acted as a conduit for the donations.^[18][7]
4. (botany) A xylem vessel or tracheid that carries water in a plant.^[18]
5. (archaic) A fountain.^{[14][13][7][18]}
6. (obsolete, 1624–1703) In architecture, a passage within or between parts of a building.^[7][14]

Related words

• conduct
• conduce
• duct
• aqueduct
• duke
• safe-conduct

References

1. ^ a b Wiktionary, the free dictionary, https://en.wiktionary.org
2. ^ a b c 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. ^ Weekley, Ernest (1921), An Etymological Dictionary of Modern English, London: John Murray
4. ^ Hoad, T. F., ed. (1986), The Concise Oxford Dictionary of English Etymology, Oxford: Clarendon Press
5. ^ a b c d e f g h Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
6. ^ a b c d e f Barnhart, Robert K. (1988), The Barnhart Dictionary of Etymology
7. ^ a b c d e f g h i j k l m n o p q r s t u Oxford English Dictionary Online (accessed March 2026), Oxford: Oxford University Press
8. ^ a b The American Heritage Dictionary of the English Language (online 2024), 5th ed., Boston: Houghton Mifflin Harcourt
9. ^ Stevenson, Angus, ed. (2010), Oxford Dictionary of English, 3rd ed., Oxford: Oxford University Press
10. ^ Dictionary.com Unabridged (2016), based on the Random House Unabridged Dictionary, New York: Random House
11. ^ a b Klein, Ernest. A Comprehensive Etymological Dictionary of the English Language. 2 vols. Amsterdam: Elsevier, 1966–1967.
12. ^ Anglo-Norman Dictionary (AND2), Aberystwyth University, anglo-norman.net (2nd ed., 2005–)
13. ^ a b c d Shorter Oxford English Dictionary on Historical Principles (2002), 5th ed., ed. William R. Trumble and Angus Stevenson, Oxford: Oxford University Press
14. ^ a b c d e Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
15. ^ Benson, Larry D., Glossarial Concordance to Middle English (Chaucer, Gower), Johns Hopkins University, github.com/jhu-digital-manuscripts/gcme
16. ^ Johnson, Samuel (1755), A Dictionary of the English Language, London; 4th ed. 1773; Johnson's Dictionary Online, ed. Beth Rapp Young et al.
17. ^ 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)
18. ^ a b c d e Collins English Dictionary (2023), Glasgow: HarperCollins