Etymologically

existimatio

Etymology and origin of the Latin word existimatio

Confidence
Established
Formation
Derivation
First attested
190–159 BC, Terence
Ultimate origin
Latin (aestimō)
Etymology tree
inherited borrowed derived
Latin aestimo
Latin existimo
Latin existimatio

Pronunciation

  • Classical: [ɛk.siːs.tɪˈmaː.ti.oː][1]
  • Ecclesiastical: [eɡ.zis.tiˈmat.t͡si.o][1]

Forms

exīstimātiō f (genitive exīstimātiōnis); third declension[1] It is also spelled existumātiō.[2][3] Late copies also have exestimātiō and exaestimātiō.[4]

Etymology

It is formed from Latin exīstimō (“to judge, think”) + -tiō.[2][4][1] De Vaan lists the verb under aestimō (“to value, estimate”), whose origin is uncertain: Havet's derivation from aes (“bronze”) and a noun “cut” is not very credible, and if the word is inherited, de Vaan prefers the root Proto-Indo-European *h₂eis- (“to seek”) of aeruscō (“to beg”).[5]

Earliest recorded meaning

Terence, prologue to the Heauton timorumenos: arbitrium vostrum, vostra existimātiō valēbit, “your verdict, your judgement will prevail”.[2]

Semantic evolution

Existimātiō is first the forming of an opinion, with existimātiō alicuius est, “it is for someone to judge”, and an opinion or judgement, often a favourable one;[2][3] Varro uses it for public opinion.[2][3] Above all it is the opinion held of a person, his reputation, good name or credit (Cicero: dum existimātiō est integra, “while his reputation is unharmed”).[2][1]

Church Latin glosses it “esteem, estimation, judgment”.[6]

Timeline

  • 190–159 BC – Terence: vostra existimātiō valēbit.[2][7]
  • 116–27 BC – Varro of public opinion.[2][7]
  • 81–43 BC – Cicero of reputation.[2][7]

Meanings

Noun

  1. The forming of an opinion; judgement, opinion; public opinion.[2][1][6]
  2. reputation, good name, honour, credit.[2][1]
  3. esteem.[6]

References

  1. ^ a b c d e f g Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j k Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  3. ^ a b c Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  4. ^ a b Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
  5. ^ de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
  6. ^ a b c Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
  7. ^ a b c Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
Cite this entry

“Existimatio.” Etymologically, 18 Oct. 2026, etymologically.com/la/existimatio. Accessed 19 Oct. 2026.

Last edited on . ·