arbitrage

Etymology

It is borrowed from French arbitrage,^[2][3][4][5] from arbitrer (“to judge, arbitrate”) and the suffix -age,^[2][6][7] from Latin arbitror (“to give judgment”),^[8][7][3] from arbiter (“judge, umpire, mediator”).^[3] Etymonline and Merriam-Webster Unabridged name Old French as the source, the latter through Middle French,^[3][7] and the Shorter Oxford takes the commercial sense from modern French.^[5] The American Heritage Dictionary gives the Latin noun a Phoenician origin,^[8] while the OED tentatively explained it as "one who goes to see", from ad- (“to”) and a verb meaning "to go".^[2]

Earliest recorded meaning

Arbitration; the settling of a dispute by an arbitrator: 1480, in Caxton's translation of Ovid's Metamorphoses.^[2] Etymonline also dates it to the late 15th century,^[3] and Dictionary.com to 1470–80.^[6]

Semantic evolution

For four centuries the word belonged to the vocabulary of judgement: arbitration, then from 1601 any authoritative decision or determination,^[2] a sense the Shorter Oxford finds already in late Middle English and marks obsolete after the early 19th century.^[5] Both are now archaic.^[2][7] The financial sense, buying in one market and selling in another to profit from a difference in price, came from modern French,^[5] and is recorded in English from 1875, in the Encyclopædia Britannica;^[2][3] the Oxford Dictionary of English dates the current sense to the late 19th century.^[9] The verb, to engage in arbitrage, is dated 1857 by Merriam-Webster Unabridged,^[7] while the OED's first record is from Keynes's Tract on Monetary Reform (1923).^[2]

Timeline

• 1480 – arbitration; decision by an arbitrator.^[2]
• 1601 – individual authoritative judgement or determination.^[2]
• 1857 – verb, to engage in arbitrage.^[7] The OED first records the verb in 1923.^[2]
• 1875 – buying and selling bills of exchange or stocks in different markets to profit from their different prices.^[2][3]

Meanings

Noun

1. The simultaneous buying and selling of the same or equivalent securities, currencies or commodities in different markets, to profit from a difference in price.^[4][7][2]
2. (archaic) Arbitration; judgement by an arbiter.^[7][2][5]
3. (archaic) Authoritative judgement or determination.^[7][2]

Verb

1. To engage in arbitrage: The fund arbitraged between the two exchanges.^[7][2][5]

Word family

• arbitrager
• arbitrageur

Related words

• arbiter
• arbitrable
• arbitrary
• arbitrate
• arbitration
• arbitrator

Usage notes

In the financial sense the word is usually said in a French way, /ˈɑːbɪtrɑːʒ/;^[4][5] the Shorter Oxford gives /ˈɑːbɪtrɪdʒ/ as its general pronunciation,^[5] and Merriam-Webster Unabridged allows an English -age ending for the old sense of arbitration.^[7]

References

1. ^ 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 Oxford English Dictionary Online (accessed March 2026), Oxford: Oxford University Press
3. ^ a b c d e f g Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
4. ^ a b c Collins English Dictionary (2023), Glasgow: HarperCollins
5. ^ 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
6. ^ a b Dictionary.com Unabridged (2016), based on the Random House Unabridged Dictionary, New York: Random House
7. ^ a b c d e f g h i j k Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
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