Etymology and origin of the Latin word cognatio
- Confidence
- Established
- Formation
- Derivation
- First attested
- 86/82 BC, Rhetorica ad Herennium
- Ultimate origin
- Latin (nāscor)
Forms
cognātiō f (genitive cognātiōnis); third declension[1]
Etymology
It is formed from cognātus (“related by blood”) with -tiō, beside nātiō (“birth, people”).[2][3][1] ⟨Cognātus⟩ comes from nāscor (“to be born”), which de Vaan traces to Proto-Italic *gnāsk-e/o- (“to be born”) and Proto-Indo-European *ǵnh₁-sk-e/o- (“to be born”); he compares Umbrian natine (“patrician family”), from a similar suffixed noun.[4] The jurist Paulus thought the name came from Ancient Greek συγγενεῖς (sungeneîs, “relatives”).[3]
Earliest recorded meaning
The OLD's earliest example is the Rhetorica ad Herennium, which names kinship as a ground of natural law;[2] Köbler's first source is Cicero.[5]
Semantic evolution
It is blood relationship, kinship, and collectively the kinsfolk: Cicero writes of a son who bore the shame of his family, kin and name hard.[2][6] An inscription has a guild of kinsmen, and Martial uses cāra cognātiō for the family feast of the Caristia.[2] Seneca reports Pythagoras' teaching of the kinship of all things, and it is used of the affinity of plants, of a natural family, and of words: Varro follows the kinship of words.[2]
Church Latin glosses it “kindred, relationship, progeny, descendant”.[7]
Timeline
- 86/82 BC – the Rhetorica ad Herennium of kinship.[2][5]
- 116–27 BC – Varro of the kinship of words.[2][5]
- 81–43 BC – Cicero of a man's kin.[2][5]
- 40–102/103 AD – Martial of the Caristia.[2][5]
Meanings
Noun
- Blood relationship, kinship, consanguinity; kinsfolk; a guild of kinsmen.[2][6][1][7]
- Relationship, affinity of things; a natural class.[2][1]
- (Ecclesiastical Latin) Progeny, descendants.[7]
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 Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
- ^ a b Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
- ^ 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 Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
- ^ a b c Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
Cite this entry
“Cognatio.” Etymologically, 19 Oct. 2026, etymologically.com/la/cognatio. Accessed 20 Oct. 2026.
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