Etymology and origin of the Latin word ementior
- Confidence
- Established
- Formation
- Derivation
- First attested
- c. 250–184 BC, Plautus
- Ultimate origin
- Proto-Indo-European (*mn-ti-)
Forms
ēmentior (present infinitive ēmentīrī, perfect active ēmentītus sum); fourth conjugation, deponent[1]
Etymology
It is from Latin ex- + mentior (“to lie”).[2][1][3] De Vaan explains mentior as a verb made from Proto-Italic *mn̥ti-, the noun that became mēns (“mind”), from Proto-Indo-European *mn-ti- (“thought, mind”);[4] “to lie” grew out of “to have second thoughts, be inventive”.[4] Cognate with Sanskrit मति (matí-, “thought”) and Lithuanian mintìs (“thought, idea”).[4]
Earliest recorded meaning
Plautus has it first, in the Amphitruo: “all you said just now, you made it all up”.[5]
Semantic evolution
It is to give a false account of something, to make it up: Plautus has a man someone invented,[2] Cicero asks whether he is to pretend he is bound by a kindness, and says rhetoricians are allowed to invent in history.[2] Sallust and Livy use it too.[5] The participle ēmentītus is also passive, as Cicero's falsified auspices,[2][3] and Priscian lists it among the deponents used in both voices.[3] It is also to assume an appearance falsely: Gellius has vices that put on a false likeness of the virtues.[2] Church Latin has “pretend, falsify”.[6]
Timeline
- c. 250–184 BC – Plautus, of making up a story.[5][2][7]
- 81–43 BC – Cicero, of pretending and of falsified auspices.[2][7]
- c. 165 AD – Gellius, of vices feigning virtues.[2][7]
Meanings
Verb
- To give a false account of, falsify, make up, invent; with accusative and infinitive, to pretend that.[2][5][1]
- To speak untruthfully, invent stories.[2]
- To assume falsely, feign.[2][1]
- (perfect participle, passive) Falsified.[2][3]
Related words
References
- ^ a b c d e f Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ 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
- ^ a b c d Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
- ^ a b c 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 Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
- ^ Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
- ^ a b c Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
Cite this entry
“Ementior.” Etymologically, 20 Oct. 2026, etymologically.com/la/ementior. Accessed 20 Oct. 2026.
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