Etymologically

probator

Etymology and origin of the Latin word probator

Confidence
Established
Formation
Derivation
First attested
Cicero
Ultimate origin
Latin (probus)
Etymology tree
inherited borrowed derived
Latin probus
Latin probo
Latin probatio
Latin probator

Forms

probātor m (genitive probātōris); third declension[1]

Etymology

It is from Latin probō (“to test, approve”) + -tor.[2][1] De Vaan traces ⟨probus⟩ “good, upright” to Proto-Italic ⟨*pro-f(w)-o-⟩ “favourable”, from ⟨*pro-⟩ and Proto-Indo-European *bʰuH- (“to be”), cognate with Umbrian ⟨prufe⟩ “correctly” and Oscan ⟨prúfatted⟩ “approved”.[3]

Earliest recorded meaning

Köbler's earliest source is Cicero, who asks quid interest inter suāsōrem factī et probātōrem? “what difference is there between the adviser of a deed and its approver?”.[4][5] Köbler dates Cicero 81–43 BC.[4]

Semantic evolution

It meant one who approves or commends, an approver, as in Cicero, and in Apuleius one who puts to the test, an examiner, and Lewis & Short call it rare but classical.[2][5]

In Ecclesiastical Latin it means tester, examiner.[6] Medieval Latin used it for an assayer.[7] In British Medieval Latin it was in law an approver, one who confesses guilt and accuses an accomplice.[8]

Timeline

  • 81–43 BC – Cicero uses it of an approver.[5][4]
  • c. 125–175 AD – Apuleius uses it of an examiner.[2][4]

Meanings

Noun

  1. An approver, one who commends.[2][5]
  2. An examiner, tester.[2][6]
  3. (Medieval Latin) An assayer.[7]

Word family

  • probātōria

References

  1. ^ a b Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  3. ^ de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
  4. ^ a b c d Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  5. ^ a b c d Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  6. ^ a b Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
  7. ^ a b Niermeyer, J. F. (1976), Mediae Latinitatis Lexicon Minus, Leiden: Brill
  8. ^ 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

“Probator.” Etymologically, 17 Oct. 2026, etymologically.com/la/probator. Accessed 17 Oct. 2026.

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