Etymologically

incorruptus

Etymology and origin of the Latin word incorruptus

Confidence
Established
Formation
Derivation
First attested
81–43 BC, Cicero
Ultimate origin
Latin (rumpō)

Pronunciation

  • Classical: [ɪŋ.kɔrˈrʊp.tʊs][1]
  • Ecclesiastical: [iŋ.korˈrup.tus][1]

Forms

incorruptus (feminine incorrupta, neuter incorruptum, comparative incorruptior); first/second-declension adjective[1] It is also spelled inconrupt-.[2] The comparative and superlative are used from Cicero on.[3][4]

Etymology

It is formed from the negative prefix in- (“not”) and corruptus (“spoiled”), the participle of corrumpō (“to spoil, corrupt”).[4][3] De Vaan traces ⟨rumpō⟩, the base of that verb, to Proto-Italic *ru-n-p- (“to break”) and Proto-Indo-European *Hru-n-p- (“to break”), cognate with Old English rēofan (“to break, tear”).[5]

Earliest recorded meaning

Köbler's first source is Cicero;[6] Lucretius writes that some believe heaven and earth will remain undamaged.[4]

Semantic evolution

It is “undamaged, unspoilt”, and also proof against decay, as Sallust's imperishable mind.[4] Of water and the like it is pure, uncontaminated, as Curtius' river Cydnus, and of documents genuine, not tampered with.[4] Morally it is “uncorrupted, pure”: Cicero says the gods should be worshipped with a pure mind and voice.[4] Of persons and judgements it means unbribed, impartial, as Cicero's question “what could be more upright, more incorruptible than this inquiry?”[4]

Church Latin glosses it “incorrupted”.[7]

Timeline

  • 96–55 BC – Lucretius of heaven and earth undamaged.[4][6]
  • 81–43 BC – Cicero of genuine letters and an impartial inquiry.[4][6]
  • 86–34 BC – Sallust of the imperishable mind.[4][6]

Meanings

Adjective

  1. Undamaged, intact, unspoilt; imperishable.[4][2][1]
  2. Pure, uncontaminated; of documents, genuine.[4][1]
  3. Morally sound, uncorrupted; chaste.[4][1][7]
  4. Not bribed, impartial, incorruptible.[4][1]

Word family

  • incorruptē
  • incorruptēla
  • incorruptibilis
  • incorruptibilitās
  • incorruptibiliter
  • incorruptiō
  • incorruptīvus
  • incorruptōrius
  • corrumpō
  • rumpō

References

  1. ^ a b c d e f g Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  3. ^ a b Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
  4. ^ a b c d e f g h i j k l m n Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  5. ^ de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
  6. ^ a b c d Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  7. ^ a b Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
Cite this entry

“Incorruptus.” Etymologically, 19 Oct. 2026, etymologically.com/la/incorruptus. Accessed 20 Oct. 2026.

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