Etymologically

estimate

Etymology and origin of the English word estimate

Confidence
Established
Formation
Borrowing
First attested
c. 1425
Borrowed from
Latin aestimatus
Ultimate origin
Latin (aestimo)

Pronunciation

  • IPA: /ˈestɪmət/, /ˈestəmət/ (UK); /ˈestɪmɪt/, /ˈestɪmət/ (US)[1]

Etymology

It is borrowed from Latin aestimatus, the past participle of aestimāre (“to value, appraise”),[2][3][4] which is also the source of esteem.[2][4]

Earliest recorded meaning

As a noun, intellectual ability or comprehension, a sense found only in late Middle English;[5][6] Etymonline gives power of the mind in the mid-15th century.[2] An early form estimate was used as a participle of esteem about 1425.[7]

Semantic evolution

The noun took the sense of a valuation in the 1560s[2] and of an approximate judgment from the 1580s,[2] 1630 in the OED;[7] a builder's or tradesman's statement of projected costs is from 1796.[7][2] In Britain the estimates are the annual accounts of probable expenditure laid before Parliament (1732).[7] The verb, to appraise the worth of something, is from the 1530s,[2] about 1532 in MWU;[3] the meaning to form an approximate notion of an amount or size is from 1669.[7][2] Older senses such as to esteem or to assign a value to have died out.[5]

Timeline

  • c. 1532 – the verb, to judge or appraise.[7][3]
  • 1563 – the noun, a price or valuation.[7][2]
  • 1630 – an approximate judgment.[7]
  • 1669 – to calculate roughly.[7][2]
  • 1796 – a builder's statement of costs.[7][2]

Modern meaning

Verb

  1. To calculate roughly the amount, size or value of something.
  2. To form an opinion about; to evaluate.
  3. To submit an approximate price for a job.
  4. (statistics) To assign a value to a parameter on the basis of a sample.

Noun

  1. A rough calculation of an amount or value.
  2. A statement of the likely cost of work to be done.
  3. A judgment or appraisal of a person or thing.

Word family

  • estimative
  • estimator
  • estimatingly
  • guesstimate
  • guestimate
  • misestimate
  • reestimate
  • estimable
  • esteem
  • estimation
  • aim
  • appraise

Usage notes

The AHD distinguishes estimate, which implies a subjective, inexact judgment, from appraise and assess (an expert valuation) and evaluate.[8]

References

  1. ^ Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j k Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  3. ^ a b c Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
  4. ^ a b Cresswell, Julia (2021), Oxford Dictionary of Word Origins, 3rd ed., Oxford: Oxford University Press
  5. ^ a b Shorter Oxford English Dictionary on Historical Principles (2002), 5th ed., ed. William R. Trumble and Angus Stevenson, Oxford: Oxford University Press
  6. ^ Pearsall, Judy, ed. (1998), The New Oxford Dictionary of English, Oxford: Clarendon Press
  7. ^ a b c d e f g h i j Simpson, J. A.; Weiner, E. S. C., eds. (1989), The Oxford English Dictionary, 2nd ed., Oxford: Clarendon Press
  8. ^ The American Heritage Dictionary of the English Language (1992), 3rd ed., Boston: Houghton Mifflin

Related etymologies

Cite this entry

“Estimate.” Etymologically, 16 Oct. 2026, etymologically.com/en/estimate. Accessed 16 Oct. 2026.

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