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exerceo

Etymology and origin of the Latin word exerceo

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Confidence
Established
Formation
Derivation
First attested
Plautus
Ultimate origin
Latin (arceō)

Pronunciation

  • IPA (Classical): [ɛkˈsɛr.ke.oː][1]
  • IPA (Ecclesiastical): [eɡˈzɛr.t͡ʃe.o][1]

Forms

exerceō (present infinitive exercēre, perfect active exercuī, supine exercitum); second conjugation[1]

Etymology

It is from ex- “out” and arceō “to enclose, keep off”, as Cassiodorus already said.[2][1][3] Lewis and Short take its first sense as to drive on, keep at work.[4]

Earliest recorded meaning

The OLD's earliest citation is from Plautus, of keeping busy.[2] Köbler dates Plautus c. 250–184 BC.[5]

Semantic evolution

It meant to keep busy, occupy, as in Plautus, and in Catullus to harass, trouble.[2] From Cato it meant to put to use, and in Virgil to cultivate land, work mines, and spend time.[2] In Lucretius it meant to keep in motion, as atoms stirred by constant movement.[2][6] From Ennius it meant to exercise the body, and in Cicero to train by practice, in Caesar of troops.[2] It meant to exercise feelings or power, as in Sallust, to carry on an activity, as in Accius, to run a business, and to administer law, as in Varro.[2] In Tacitus it meant to lend at interest, and in Cicero to levy taxes.[2]

In Ecclesiastical Latin it meant to exercise, practise, meditate, pray, work at, occupy.[7] It survives in French exercer and Spanish ejercer, and its noun exercitium gave English exercise in the mid-14th century.[1][8]

Timeline

  • c. 250–184 BC – Plautus uses it of keeping busy.[2][5]
  • 234–149 BC – Cato uses it of putting to use.[2][5]
  • 81–43 BC – Cicero uses it of training and of levying taxes.[2][5]
  • 98–115 AD – Tacitus uses it of lending at interest.[2][5]
  • mid-14th century – English exercise is recorded.[8]

Meanings

Verb

  1. To train; to exercise.[2]
  2. To keep busy; to harass.[2]
  3. To use, work; to cultivate; to spend (time).[2]
  4. To exercise (feelings, power).[2]
  5. To keep in motion, stir.[2]
  6. To lend at interest.[2]
  7. To carry on, practise; to run (a business).[2]
  8. To administer (law); to prosecute (an action).[2]
  9. To levy (taxes).[2]

Word family

  • abarceō
  • aberceō
  • arceō
  • coërceō
  • exercitāmentum
  • exercitātē
  • exercitātiō
  • exercitātor
  • exercitātōrius
  • exercitātrīx
  • English exercise

References

  1. ^ a b c d e 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 q r s t u Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  3. ^ Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
  4. ^ Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  5. ^ a b c d e Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  6. ^ Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
  7. ^ Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
  8. ^ a b Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
Cite this entry

“Exerceo.” Etymologically, 16 Oct. 2026, etymologically.com/la/exerceo. Accessed 16 Oct. 2026.

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