Etymologically
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mitigate

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Pronunciation

  • /ˈmɪt.ɪ.ɡeɪt/[1]

Etymology

It is inherited from Middle English mitigaten,[2][3][4] borrowed from Latin mītigō (“to soften, soothe, make mild”), taken from its past participle mītigātus.[5][6][7][8] The Latin verb is formed from mītis (“mild, gentle, soft”) and the root of agō (“to drive, do, make”);[6][2][7][9] the OED explains the second part as a verbal suffix also found in pūrgō.[5] Barnhart assumes a lost adjective *mitigus (“making mild”), and notes that some Middle English uses may be a back-formation from the earlier noun mitigation.[7] The Latin adjective is cognate with Old Irish méth (“fat, rich”) and Welsh mwydyn (“soft part”);[5] Etymonline, after de Vaan, adds Lithuanian mielas (“nice, dear”) and a reconstructed Proto-Indo-European *mehiti- (“soft”).[6] Related forms in the Romance languages are mitiger, mitigare and mitigar.[5]

Earliest recorded meaning

To relieve an illness, a pain or suffering: before 1425, in a translation of Guy de Chauliac's Grande Chirurgie.[5][7] The noun mitigation is older, recorded before 1376 in Piers Plowman.[7]

Semantic evolution

From the relief of pain the verb spread in the 16th century to moderating behaviour and feelings (about 1500), to appeasing a person's anger (before 1513), and to making laws less strict (1532) and punishments less severe (before 1533).[5] From 1651 it was used of making an offence seem less grave, the sense behind mitigating circumstances;[5] Weekley compares the German phrase mildernde Umstände.[10] An adjective mitigate, mitigated, was used from the 15th century to 1592.[5] Johnson (1755) gives "to soften; to make less rigorous" and "to alleviate; to assuage".[11] In 20th-century civil law a person who suffers a wrong has a duty to mitigate the loss (1912).[5]

Timeline

  • before 1376 – the noun mytygacioun, in Piers Plowman.[7]
  • before 1425 – to relieve pain or illness.[5][7]
  • c. 1500 – to moderate one's behaviour or feelings.[5]
  • 1532 – to make a law or policy less strict.[5]
  • before 1533 – to reduce a punishment.[5]
  • 1651 – to make an offence seem less serious.[5]
  • 1912 – in civil law, to reduce a loss or damage.[5]

Meanings

Verb

  1. To make something less severe, painful, harsh or serious: New dams helped mitigate the flooding.[9][12][5]
  2. To make an offence seem less grave; to extenuate it, as in mitigating circumstances.[5][13]
  3. (law) To reduce the loss or damage one suffers from a wrong.[5][13]
  4. To become less severe.[9]

Word family

  • mitigable
  • mitigation
  • mitigator
  • mitigative
  • mitigatory
  • mitigatedly

Usage notes

Mitigate is sometimes used by mistake for militate, to have weight for or against something: "his record militates (not mitigates) against promotion".[9][13] Grammarphobia explains that mitigate against makes no sense, since to mitigate is to make milder.[14]

References

  1. ^ Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b The American Heritage Dictionary of the English Language (online 2024), 5th ed., Boston: Houghton Mifflin Harcourt
  3. ^ Klein, Ernest. A Comprehensive Etymological Dictionary of the English Language. 2 vols. Amsterdam: Elsevier, 1966–1967.
  4. ^ Dictionary.com Unabridged (2016), based on the Random House Unabridged Dictionary, New York: Random House
  5. ^ a b c d e f g h i j k l m n o p q r Oxford English Dictionary Online (accessed March 2026), Oxford: Oxford University Press
  6. ^ a b c Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  7. ^ a b c d e f g Barnhart, Robert K. (1988), The Barnhart Dictionary of Etymology
  8. ^ Hoad, T. F., ed. (1986), The Concise Oxford Dictionary of English Etymology, Oxford: Clarendon Press
  9. ^ a b c d Collins English Dictionary (2023), Glasgow: HarperCollins
  10. ^ Weekley, Ernest (1921), An Etymological Dictionary of Modern English, London: John Murray
  11. ^ Johnson, Samuel (1755), A Dictionary of the English Language, London; 4th ed. 1773; Johnson's Dictionary Online, ed. Beth Rapp Young et al.
  12. ^ Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
  13. ^ a b c Garner, Bryan A., ed. (2004), Black's Law Dictionary, 8th ed., St. Paul, Minn.: Thomson West
  14. ^ O'Conner, Patricia T.; Kellerman, Stewart, The Grammarphobia Blog, grammarphobia.com, p. "Is it “militate” or “mitigate”?", 28 November 2006