Etymologically

obliviosus

Etymology and origin of the Latin word obliviosus

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

Pronunciation

  • IPA (Classical): [ɔb.liː.wiˈoː.sʊs][1]
  • IPA (Ecclesiastical): [ob.li.viˈɔː.s̬us][1]

Forms

oblīviōsus (feminine oblīviōsa, neuter oblīviōsum); first/second-declension adjective[1]

Etymology

It is from oblīviō or oblīvium “forgetfulness” with -ōsus, from oblīvīscor “to forget”.[2][1]

Earliest recorded meaning

The OLD's earliest citation is Plautus, “forgetful”.[2] Köbler dates Plautus c. 250–184 BC.[3]

Semantic evolution

It meant forgetful, having a bad memory, as in Plautus and Cicero, and producing forgetfulness, as in Horace, and Lewis & Short call it rare but classical.[2][4][5]

In Ecclesiastical Latin it means forgetful.[6] English oblivious (mid-15th century) is from it.[7]

Timeline

  • c. 250–184 BC – Plautus uses it.[2][3]
  • 81–43 BC – Cicero uses it.[5][3]
  • 65–8 BC – Horace uses it of what brings forgetfulness.[2][3]
  • mid-15th century – English oblivious is recorded.[7]

Meanings

Adjective

  1. Forgetful, oblivious.[2][4]
  2. Causing forgetfulness.[2]

References

  1. ^ a b c d Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  3. ^ a b c d Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  4. ^ a b Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  5. ^ a b Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
  6. ^ Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
  7. ^ a b Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
Cite this entry

“Obliviosus.” Etymologically, 17 Oct. 2026, etymologically.com/la/obliviosus. Accessed 17 Oct. 2026.

Last edited on . ·