- Confidence
- Established
- Formation
- Derivation
- First attested
- Sallust
- Ultimate origin
- Proto-Indo-European (*h₁énteros)
Pronunciation
Forms
internus (feminine interna, neuter internum, adverb internē); first/second-declension adjective[1]
Etymology
It is from inter “between” with the suffix -nus, from a pre-Latin ⟨*interos⟩ “inside”, from Proto-Indo-European *h₁énteros (“inner”).[2][1][3][4] Priscian derives it from intrā.[5]
Earliest recorded meaning
Köbler's first source is Sallust, whom he dates 86–34 BC, and Sallust uses it of internal affairs.[4][2]
Semantic evolution
Lewis and Short call it post-Augustan.[6] It meant situated inside, internal, as Seneca's inner fire, and in Ovid within the house, private.[2][7] In Pliny the Elder it meant of seas landlocked, mare internum the Mediterranean.[2] From Sallust it meant domestic, civil, internal, as Tacitus' civil discords, and interna internal affairs.[2][6]
In Ecclesiastical Latin it meant internal, inward, inner.[8] Medieval Latin internālis from it gave English internal in the early 15th century, and French interne gave English intern.[3]
Timeline
- 86–34 BC – Sallust uses it of internal affairs.[2][4]
- 43 BC–18 AD – Ovid uses it of the home.[2][4]
- 23/24–79 AD – Pliny the Elder uses mare internum.[2][4]
- early 15th century – English internal is recorded.[3]
Meanings
Adjective
- Inside, internal; private.[2]
- Of seas, landlocked, mare internum, the Mediterranean.[2]
- Domestic, civil, interna, internal affairs.[2]
Word family
- interna
- internālis
Related words
References
- ^ a b c d 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 c Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
- ^ a b c d e Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
- ^ Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
- ^ a b Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
- ^ Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
- ^ Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
Cite this entry
“Internus.” Etymologically, 16 Oct. 2026, etymologically.com/la/internus. Accessed 16 Oct. 2026.
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