Etymology and origin of the Latin word insuetus
- Confidence
- Established
- Formation
- Derivation
- First attested
- 220–130 BC, Pacuvius
- Ultimate origin
- Proto-Indo-European (*sue(h₁-)dʰh₁-)
Forms
īnsuētus (feminine īnsuēta, neuter īnsuētum); first/second-declension adjective[1]
Etymology
It is from Latin in- (“not”) + suētus (“accustomed”), the participle of suēscō (“to become accustomed”).[2][1][3] De Vaan traces suēscō to Proto-Italic *swē(þ)-sk-e/o- and Proto-Indo-European *sue(h₁-)dʰh₁- (“to make one's own, get accustomed”), comparing Ancient Greek εἴωθα (eíōtha, “to be used to”) and Ancient Greek ἦθος (êthos, “custom”).[4]
Earliest recorded meaning
The TLL finds it once in Pacuvius,[3] who has someone called by an unaccustomed name.[2]
Semantic evolution
It means unaccustomed or unused to something, with a genitive, dative, ⟨ad⟩ or an infinitive: Cicero has a man unused to insult, Caesar men unused to labour and to a kind of fighting, Tibullus hands unused to work.[2][5] It also means unfamiliar or unusual.[2][1] The TLL finds it in the Rhetorica ad Herennium and Cicero, and more often from Caesar on.[3] Döderlein notes that Livy pairs it with insolitus.[6]
Timeline
- 220–130 BC – Pacuvius of an unfamiliar name.[2][3][7]
- 81–43 BC – Cicero of a man unused to insult.[5][7]
- c. 50 BC – Caesar of men unused to labour.[5][7]
- c. 55–19/18 BC – Tibullus of hands unused to work.[2][7]
Meanings
Adjective
Word family
- insuetudo
Related words
References
- ^ a b c d e f g Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ a b c d e f g h 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
- ^ 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
- ^ Döderlein, Ludwig (1874), Döderlein’s Hand-book of Latin Synonymes, tr. H. H. Arnold, Andover: W. F. Draper
- ^ a b c d Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
Cite this entry
“Insuetus.” Etymologically, 20 Oct. 2026, etymologically.com/la/insuetus. Accessed 20 Oct. 2026.
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