Etymologically

moderatio

Etymology and origin of the Latin word moderatio

Confidence
Established
Formation
Derivation
First attested
Rhetorica ad Herennium
Ultimate origin
Latin (modus)

Forms

moderātiō f (genitive moderātiōnis); third declension[1]

Etymology

It is from moderor “to moderate, control” with the suffix -tiō, from modus “measure”.[2][1][3]

Earliest recorded meaning

The OLD's earliest citation is from the Rhetorica ad Herennium, of controlling.[2] Köbler dates it 86/82 BC.[4]

Semantic evolution

It meant the action of controlling or managing, as in the Rhetorica ad Herennium, and in Cicero conduct that avoids extremes, moderation, self-control, temperateness, and the restraining or checking of something.[2] Lewis & Short add the temperateness of weather.[5]

British Medieval Latin used it for conduct that avoids extremes.[6] It survives in Italian moderazione and Spanish moderación, and through Old French moderacion it gave English moderation in the early 15th century.[1][3]

Timeline

  • 86/82 BC – The Rhetorica ad Herennium uses it.[2][4]
  • 81–43 BC – Cicero uses it of moderation.[2][4]
  • early 15th century – English moderation is recorded.[3]

Meanings

Noun

  1. Moderation, restraint.[2]
  2. Self-control, temperateness.[2]
  3. Control, management.[2]
  4. Restraining, checking.[2]

Word family

  • immoderātiō

References

  1. ^ a b c Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  3. ^ a b c Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  4. ^ a b c Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  5. ^ Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  6. ^ Latham, R. E., D. R. Howlett, R. K. Ashdowne, et al. (1975–2013), Dictionary of Medieval Latin from British Sources, London: British Academy / Oxford University Press
Cite this entry

“Moderatio.” Etymologically, 16 Oct. 2026, etymologically.com/la/moderatio. Accessed 16 Oct. 2026.

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