Etymology and origin of the Latin word roboro
- Confidence
- Established
- Formation
- Derivation
- First attested
- Lucretius
- Ultimate origin
- Latin rōbur
Forms
rōborō (present infinitive rōborāre, perfect active rōborāvī, supine rōborātum); first conjugation[1] An inscription spells it with ⟨u⟩, robur-.[2]
Etymology
It is from Latin rōbur (“hard oak; strength”) + -ō.[2][1]
Earliest recorded meaning
It is first found in Lucretius, of the body: adulta aetās cum prīmum rōborat artūs, “when ripening age first strengthens the limbs”.[2][3]
Semantic evolution
Lewis & Short call it rare but classical.[3] From the strength of the body it was used of plants made sturdy by the sun, of nests reinforced with straw, and of sounds made fuller.[2] Figuratively Cicero and Horace use it for strengthening qualities and moral character.[2][3]
The Vulgate uses it of strengthening a kingdom,[3] Ecclesiastical Latin also for “to prevail”,[4] and Tertullian and Jerome have the participle rōborātus as an adjective, “strong”.[3]
Timeline
- 96–55 BC – Lucretius uses it of strengthening the limbs.[2][5]
- 81–43 BC – Cicero uses it of strengthening a quality by constancy.[2][5]
- 65–8 BC – Horace uses it of the moral training of the heart.[2][5]
- 23/24–79 AD – Pliny the Elder uses it of plants and nests.[2][5]
- c. 165 AD – Gellius uses it of sounds made stronger by an added ⟨h⟩.[2][5]
- 390–406 AD – The Vulgate uses it of strengthening a kingdom.[3][5]
Meanings
Verb
- To make physically strong, strengthen, invigorate (people, limbs, plants, structures, sounds).[2][3]
- (figurative) To make more powerful or effective, reinforce; to give moral strength to.[2][3]
- (Ecclesiastical Latin) To prevail.[4]
Word family
- corrōborō
- irrōborō
- praeroboratus
- rōborascō
- rōborātiō
References
- ^ a b c d 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 e f g h Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
- ^ a b Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
- ^ a b c d e f Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
Derived terms
Cite this entry
“Roboro.” Etymologically, 20 Oct. 2026, etymologically.com/la/roboro. Accessed 23 Oct. 2026.
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