Etymologically

argumentosus

Etymology and origin of the Latin word argumentosus

Confidence
Established
Formation
Derivation
First attested
Quintilian
Ultimate origin
Proto-Indo-European (*h₂erǵ-)
Etymology tree
inherited borrowed derived
Latin arguo
Latin argumentum
Latin argumentosus

Pronunciation

  • IPA (Classical): [ar.ɡuː.mɛnˈtoː.sʊs][1]
  • IPA (Ecclesiastical): [ar.ɡu.menˈtɔː.s̬us][1]

Forms

argūmentōsus (feminine argūmentōsa, neuter argūmentōsum); first/second-declension adjective[1]

Etymology

It is from Latin argūmentum (“argument, subject matter”) + -ōsus, from arguō (“to make clear, prove”).[2][1][3] ⟨arguō⟩ goes back, according to de Vaan, to Proto-Italic *argu- (“bright”), from Proto-Indo-European *h₂erǵ-u- (“white”).[4]

Earliest recorded meaning

Its earliest source is Quintilian.[3][5] Köbler dates Quintilian c. 35–95/96 AD.[3]

Semantic evolution

It meant abounding in subject matter, rich in matter, carefully worked, as of a work in Quintilian, and rich in proof, argumentative, as in Sidonius and Acron.[2][6][5]

In Ecclesiastical Latin it meant rich in material or proof, busy.[7] Medieval Latin used it for skilled in argument and for contriving.[8] British Medieval Latin used it for assiduous, busy, as an epithet of the bee, for persuasive, convincing, and for ingeniously contrived.[9] English argumentose and Spanish argumentoso are from it.[1]

Timeline

  • c. 35–95/96 AD – Quintilian uses it.[5][3]

Meanings

Adjective

  1. Rich in subject matter.[2]
  2. Rich in proof; argumentative.[6][5]
  3. (Medieval Latin) Busy, assiduous; ingeniously contrived.[9]

References

  1. ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c 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. ^ 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 Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
  6. ^ a b Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  7. ^ Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
  8. ^ Niermeyer, J. F. (1976), Mediae Latinitatis Lexicon Minus, Leiden: Brill
  9. ^ a b 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

“Argumentosus.” Etymologically, 17 Oct. 2026, etymologically.com/la/argumentosus. Accessed 17 Oct. 2026.

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