Etymologically

Etymology and origin of the Latin word iuste

Confidence
Established
Formation
Derivation
First attested
86/82 BC, Rhetorica ad Herennium
Ultimate origin
Latin (iūs)
Etymology tree
inherited borrowed derived
Latin iustus
French juste
French justement
Latin iuste

Forms

iūstē (comparative iūstius, superlative iūstissimē)[1]

Etymology

It is from Latin iūstus (“just, lawful”) + -ē.[2][1] De Vaan derives iūstus from iūs (“law, right”), whose old form is seen in the Forum inscription's ⟨iouestod⟩, and traces iūs to an s-stem Proto-Italic *jowos.[3]

Earliest recorded meaning

The OLD's earliest example is in the Rhetorica ad Herennium, of deeds done with the best of reasons.[2][4] Köbler gives Cicero as its first author.[4]

Semantic evolution

It means in accordance with the law, as Cicero speaks of accusing someone lawfully and dutifully, and in accordance with justice, rightfully or deservedly.[2] It is also justifiably, with good reason, and in a spirit of justice, uprightly, as when Cicero asks whether living justly is useful.[2][5] Gellius uses it of the full prescribed term, of babies carried the full time in the womb.[2]

Timeline

  • 86/82 BC – The Rhetorica ad Herennium of deeds rightly done.[2][4]
  • 81–43 BC – Cicero of lawful accusation and of just living.[2][4]
  • c. 165 AD – Gellius of the full term of pregnancy.[2][4]

Meanings

Adverb

  1. Lawfully, legitimately.[2]
  2. Rightfully, deservedly; with good reason.[2]
  3. Justly, uprightly.[2][1]
  4. Fully, to the prescribed extent.[2]

References

  1. ^ a b c Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j k l 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 e Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  5. ^ Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
Cite this entry

“Iuste.” Etymologically, 19 Oct. 2026, etymologically.com/la/iuste. Accessed 20 Oct. 2026.

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