Etymologically

equal

Etymology and origin of the English word equal

Confidence
Established
Formation
Borrowing
First attested
c. 1390
Borrowed from
Latin aequalis via Middle English
Ultimate origin
Latin (aequalis)

Pronunciation

  • IPA: /ˈiː.kwəl/[1]

Etymology

It is inherited from Middle English equal,[2][3] borrowed from Latin aequālis (“uniform, identical, equal”),[4][5] from aequus (“level, even, flat; just, fair, impartial; calm”),[4][5] a word of unknown or uncertain origin,[4][5][6] with the suffix -al.[5][3] A parallel form egal, from Old French egal, was in use from the late 14th century until the 17th.[4][5] It is related to equation, equator, equity, equivalent, adequate and iniquity.[6][7]

Earliest recorded meaning

“Identical in amount, extent or portion”: the late 14th century in Etymonline,[4] about 1390 in Chaucer's Canterbury Tales according to Barnhart,[5] and about 1391 in the OED, of magnitudes and numbers.[8]

Semantic evolution

“Even or smooth of surface” is from the early 15th century.[4] Of persons, “on the same level in rank, power or excellence” is from 1526,[8] and “adequate, fit”, now only with to, as in equal to the task, from before 1674.[8] The ethical sense “fair, just, impartial”, as in Ben Jonson's “O my most equal hearers”, has almost entirely gone out of use.[9] The noun, one who is equal to another, is from 1573,[5][10] and the verb “to compare, liken” from 1586;[5] “to match, rival” is from 1590, in Marlowe's Tamburlaine.[5][10] Equal rights is from 1752, and by 1854 American English used it of men and women;[4] equal opportunity in hiring is recorded by 1925.[4] Other things being equal (1848) translates Latin ceteris paribus.[8]

Timeline

  • c. 1390 – identical in amount.[5][8]
  • early 15th century – even of surface.[4]
  • 1526 – of persons, on the same level.[8]
  • 1573 – noun.[5][10]
  • 1590 – verb, to match.[5][10]
  • 1752 – equal rights.[4]
  • 1925 – equal opportunity.[4]

Modern meaning

Adjective

  1. Having the same quantity, measure or value as another.
  2. Having the same rights, privileges or status: equal before the law.
  3. The same for all members of a group: equal treatment.
  4. Having the qualities needed; adequate: equal to the task.

Noun

  1. A person or thing that is equal to another, especially in rank or ability.

Verb

  1. To be equal to, especially in value.
  2. To do or produce something equal to; to match or rival.

Word family

  • equally
  • coequal
  • equal-area
  • equalize
  • equalise
  • nonequal
  • subequal
  • unequal
  • equality
  • equation
  • equator
  • equity
  • equivalent
  • adequate
  • iniquity
  • egalitarian

Usage notes

Equal has been called an absolute term that cannot be compared (more equal), but the American Heritage notes that most of its Usage Panel accepted a more equal allocation in an earlier survey, and that the objection assumes mathematics is the model for everyday language.[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. ^ The American Heritage Dictionary of the English Language (2000), 4th ed., Boston: Houghton Mifflin
  3. ^ a b Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
  4. ^ a b c d e f g h i j k Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  5. ^ a b c d e f g h i j k l Barnhart, Robert K. (1988), The Barnhart Dictionary of Etymology
  6. ^ a b Klein, Ernest. A Comprehensive Etymological Dictionary of the English Language. 2 vols. Amsterdam: Elsevier, 1966–1967.
  7. ^ Cresswell, Julia (2021), Oxford Dictionary of Word Origins, 3rd ed., Oxford: Oxford University Press
  8. ^ a b c d e f Simpson, J. A.; Weiner, E. S. C., eds. (1989), The Oxford English Dictionary, 2nd ed., Oxford: Clarendon Press
  9. ^ Trench, Richard Chenevix (1859), A Select Glossary of English Words Used Formerly in Senses Different from Their Present, London: John W. Parker
  10. ^ a b c d Merriam-Webster's Collegiate Dictionary (2003), 11th ed., Springfield, Mass.: Merriam-Webster
  11. ^ The American Heritage Dictionary of the English Language (1992), 3rd ed., Boston: Houghton Mifflin

Related etymologies

Cite this entry

“Equal.” Etymologically, 15 Oct. 2026, etymologically.com/en/equal. Accessed 15 Oct. 2026.

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