English
judiciary
Judiciary comes from Latin iudiciarius ‘judicial, judiciary’, from iūdicium ‘judgement’, and ultimately from Proto-Indo-European *h₂yew- ‘straight, upright, right’.
- Proto-Indo-Europeanc. 4500–2500 BCE*h₂yew-1‘straight, upright, right’reconstructed
- Proto-Indo-Europeanc. 4500–2500 BCE*h₂yéwos1reconstructed
- Proto-Italicc. 1500–700 BCE*jowos1‘court of law’reconstructed
- Latinc. 75 BCE–200 CEiūs1‘law, right’
- Latinc. 75 BCE–200 CEiūdex1‘judge’
- Latinc. 75 BCE–200 CEiūdicō2‘to judge, decide’
- Latinc. 75 BCE–200 CEiūdicium3‘judgement’
- Latinc. 75 BCE–200 CEiudiciarius4‘judicial, judiciary’
- Englishearliest quotation 2004judiciary4
attested reconstructed ? uncertain or disputed deepest recorded ancestor
- 1 Wiktionary, Latin iudico
- 2 Wiktionary, Latin iudicium
- 3 Wiktionary, Latin iudiciarius
- 4 Wiktionary, English judiciary
- Earliest quotation in Wiktionary’s entry: 2004, Gretchen Helmke, Courts under Constraints: Judges: “Compared with most Latin American courts, on paper the…”.
Lineage
- Proto-Indo-Europeanc. 4500–2500 BCE*h₂yew-Wiktionary, Latin iudico‘straight, upright, right’reconstructed
- Proto-Indo-Europeanc. 4500–2500 BCE*h₂yéwosWiktionary, Latin iudicoreconstructed
- Proto-Italicc. 1500–700 BCE*jowosWiktionary, Latin iudico‘court of law’reconstructed
- Latinc. 75 BCE–200 CEiūsWiktionary, Latin iudico‘law, right’
- Latinc. 75 BCE–200 CEiūdexWiktionary, Latin iudico‘judge’
- Latinc. 75 BCE–200 CEiūdicōWiktionary, Latin iudicium‘to judge, decide’
- Latinc. 75 BCE–200 CEiūdiciumWiktionary, Latin iudiciarius‘judgement’
- Latinc. 75 BCE–200 CEiudiciariusWiktionary, English judiciary‘judicial, judiciary’
- Englishearliest quotation 2004judiciaryWiktionary, English judiciary. Earliest quotation in Wiktionary’s entry: 2004, Gretchen Helmke, Courts under Constraints: Judges: “Compared with most Latin American courts, on paper the…”
Linked words
through Proto-Indo-European *h₂yew- ‘straight, upright, right’
yet, jurist, injurious, 24 more
through Proto-Indo-European *h₂yéwos
justify, justification, injustice, 23 more
through Proto-Italic *jowos ‘court of law’
through Latin iūs ‘law, right’
through Latin iūdex ‘judge’
through Latin iūdicō ‘to judge, decide’
judge, judgment, preach, predicament, predicate, adjudicate, judicature, 13 more
through Latin iūdicium ‘judgement’
Today it means
noun The collective body of judges, justices, etc.
Sources
Sources: Wiktionary, “judiciary”; the older steps come from the Wiktionary entries for Latin iudico, Latin iudicium, Latin iudiciarius. By Wiktionary contributors, CC BY-SA 4.0, via kaikki.org (dump of Oct 3 2026); text adapted and restructured. Language periods are conventional ranges, not dates for this word. License.
Etymograph / Proto-Indo-European *h₂yew- / judiciary