Etymologically

Etymology and origin of the Latin word iactans

Confidence
Established
Formation
Derivation
First attested
81–43 BC, Cicero
Ultimate origin
Latin iaciō
Etymology tree
inherited borrowed derived
Latin iacto
Latin iactans
From the same root
Latin iactatio ← iacto
Latin iactantia ← iactans

Pronunciation

  • Classical: [ˈjak.tãːs][1]
  • Ecclesiastical: [ˈjak.tans][1]

Forms

iactāns (genitive iactantis, adverb iactanter); third-declension one-termination adjective[1]

Etymology

Used as an adjective, it is the present participle from Latin iactō (“to throw; to boast”).[2][1][3] That verb is formed from iaciō (“to throw”),[4] which de Vaan traces to Proto-Italic *jak-i- (“to throw”) further back to Indo-European.[5] Cognate with Ancient Greek ἵημι (híēmi, “to send, let go, throw”).[5]

Earliest recorded meaning

Cicero is its first author:[4] in a fragment of his letters it stands beside insolēns and arrogāns.[6][7]

Semantic evolution

Usually it meant boastful in a bad sense, with or without a genitive: Quintilian describes a pompous man full of himself, suī iactāns, as a hawker of eloquence.[6][7] Virgil, Horace and Pliny the Younger use the comparative iactantior, too boastful, and Pliny speaks of boastful and vainglorious letters.[6][8] The Historia Augusta has the superlative of a most ostentatious lover of the common people.[6][8] In a good sense it meant proud or exultant, as in Statius of Rome and in Claudian of a court.[6][2]

Church Latin kept the sense “boastful, vainglorious”,[9] and Old High German glosses render it with words for boasting.[4]

Timeline

  • 81–43 BC – Cicero uses it in a letter beside insolēns and arrogāns.[6][4]
  • 70–19 BC – Virgil uses the comparative.[6][7][4]
  • 65–8 BC – Horace uses the comparative.[6][8][4]
  • c. 35–95/96 AD – Quintilian uses it with a genitive.[6][4]
  • c. 45–96 AD – Statius uses it in a good sense, of Rome.[2][4]

Meanings

Adjective

  1. Boastful, arrogant, vainglorious.[2][6][9]
  2. Exultant, proud.[2][6][7]

Word family

  • iactanter

Usage notes

It is also the ordinary present participle of iactō, “throwing, tossing”.[8][7] Lewis and Short and Gaffiot spell it jactāns.[10][8]

References

  1. ^ a b c d 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. ^ Bianchi, Rossella; Lelli, Olga (2014), VOLI: Vocabolario di latino, Florence: Le Monnier
  4. ^ a b c d e f g h Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  5. ^ a b 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 d e f g h i j k Georges, Karl Ernst (1913–1918), Ausführliches lateinisch-deutsches Handwörterbuch, 8th ed., ed. Heinrich Georges, Hannover; Leipzig: Hahn
  7. ^ a b c d e Conte, Gian Biagio; Pianezzola, Emilio; Ranucci, Giuliano (2010), il Latino: Vocabolario della lingua latina, 3rd ed., Florence: Le Monnier
  8. ^ a b c d e Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
  9. ^ a b Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
  10. ^ Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press

Derived terms

Cite this entry

“Iactans.” Etymologically, 20 Oct. 2026, etymologically.com/la/iactans. Accessed 23 Oct. 2026.

Last edited on . ·