Etymology and origin of the Latin word iniquus
- Confidence
- Established
- Formation
- Derivation
- First attested
- c. 250–184 BC, Plautus
- Ultimate origin
- Latin (aequus)
Etymology tree
Forms
inīquus (feminine inīqua, neuter inīquum, comparative inīquior, superlative inīquissimus); first/second-declension adjective[1] It is often written inīcus, which manuscripts confuse with inimīcus.[2]
Etymology
It is formed from Latin in- (“not”) + aequus (“level, equal, fair”), with the vowel weakened.[2][3][1] aequus (Old Latin ⟨aiquom⟩) is probably from ⟨*aikwos⟩, but de Vaan finds no convincing etymology for it.[4]
Earliest recorded meaning
Köbler dates it from Cicero,[5] but the OLD cites Plautus: illī inīquī iūs ignōrant, “those unfair men know nothing of justice”, and women live lēge … inīquiōre … quam virī, “under a harsher law than men”.[2]
Semantic evolution
Inīquus is first “uneven, rough” of ground (Caesar: subīre inīquissimum locum, “to climb a very steep place”), “unequal”, “excessive” or “too small”, and of a contest “ill-matched” (Cicero: haec est inīqua certātiō).[2][3] Of laws and actions it is “unfair, harsh” (of false weights, exorbitant interest, unjust charges), and of persons “prejudiced, hostile”; as a noun inīquus is an ill-wisher, an enemy.[2][1] Circumstances, positions, winds and seas that work against someone are inīqua, “unfavourable, adverse”.[2][1] Inīquō animō is “with resentment, discontentedly”.[2]
Church Latin glosses it “unjust, wicked, godless”, and as a noun “evildoer”.[6]
Timeline
- c. 250–184 BC – Plautus: illī inīquī iūs ignōrant.[2][5]
- 190–159 BC – Terence: nē istuc tam inīquō patiāre animō.[2][5]
- 81–43 BC – Cicero: haec est inīqua certātiō.[2][5]
- c. 50 BC – Caesar uses it of steep ground.[2][5]
Meanings
Adjective
- Uneven, rough, steep (of ground).[2][3]
- Unequal; excessive; too small.[2][1]
- Ill-matched; one-sided.[2]
- unfair, unjust, harsh.[2][1][6]
- Prejudiced, hostile.[2][1]
- Unfavourable, adverse.[2][1]
- inīquō animō: discontentedly, with resentment.[2]
- (Ecclesiastical Latin) Wicked, godless.[6]
Noun
Word family
Related words
References
- ^ a b c d e f g h i j Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ a b c d e f g h i j k l m n o p q r s t Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
- ^ a b c Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
- ^ de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
- ^ a b c d e Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
- ^ a b c d e Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
Cite this entry
“Iniquus.” Etymologically, 18 Oct. 2026, etymologically.com/la/iniquus. Accessed 19 Oct. 2026.
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