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inexpertus

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Etymology and origin of the Latin word inexpertus

Confidence
Established
Formation
Derivation
First attested
70–19 BC, Virgil
Ultimate origin
Latin (experior)
Etymology tree
inherited borrowed derived
Latin expertus
English expert
Latin inexpertus

Pronunciation

  • Classical: [ɪ.nɛkˈspɛr.tʊs][1]
  • Ecclesiastical: [i.nekˈspɛr.tus][1]

Forms

inexpertus (feminine inexperta, neuter inexpertum); first/second-declension adjective[1]

Etymology

It is from Latin in- (“not”) + expertus (“tried, experienced”), the participle of experior (“to try”).[2][3][1] De Vaan treats ⟨-perior⟩ with pariō (“to bring forth”), from Proto-Italic *per(e)i- (“to find, experience”).[4]

Earliest recorded meaning

Köbler dates it from Livy.[5] The OLD's first example is Virgil's Aeneid, where Dido resolves to leave nothing untried before she dies.[2] Lewis & Short note that it is not in Cicero or Caesar.[6]

Semantic evolution

Actively it means lacking experience of a thing, as Livy's army unused to good fortune and Tacitus' visitors unacquainted with licence.[2][6] Passively it means untried or untested, and not known from experience, unfamiliar: Publilius Syrus says that whatever happens unexpectedly does more harm.[2] Church Latin glosses it inexperienced, unaccustomed.[7]

Timeline

  • 70–19 BC – Virgil of something untried.[2][5]
  • 59 BC–17 AD – Livy of an army unused to good things.[6][5]
  • 98–115 AD – Tacitus of people unacquainted with licence.[6][5]

Meanings

Adjective

  1. Lacking experience of a thing, inexperienced, unaccustomed.[2][6][1]
  2. Not tested, untried, unproven.[2][6][1]
  3. Not known from experience, unfamiliar.[2]

References

  1. ^ a b c d e f Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h 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. ^ de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
  5. ^ a b c d Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  6. ^ a b c d e f Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  7. ^ Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
Cite this entry

“Inexpertus.” Etymologically, 19 Oct. 2026, etymologically.com/la/inexpertus. Accessed 20 Oct. 2026.

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