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irrumpo

Etymology and origin of the Latin word irrumpo

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Confidence
Established
Formation
Compound
First attested
Rhetorica ad Herennium
Ultimate origin
Proto-Indo-European (*Hrewp-)

Pronunciation

  • IPA (Classical): [ɪrˈrʊm.poː][1]
  • IPA (Ecclesiastical): [irˈrum.po][1]

Forms

irrumpō (present infinitive irrumpere, perfect active irrūpī, supine irruptum); third conjugation[1] Also spelled inrumpō.[2]

Etymology

It is from in- “into” and rumpō “to break”.[2][1][3] De Vaan traces ⟨rumpō⟩ to Proto-Indo-European *Hru-n-p- (“to break”).[4]

Earliest recorded meaning

The OLD's earliest citation is from the Rhetorica ad Herennium, of forcing one's way into a building.[2] Köbler dates it 86/82 BC.[5]

Semantic evolution

It meant to force one's way into, burst into a building; of troops to rush on the enemy, and Caesar has in castra irrumpere; to intrude into a place, trespass; and of things to force a passage, penetrate, as in Cicero.[2][6]

In Ecclesiastical Latin it meant to break in, intrude, interrupt, violate, burst forth.[7] Its participle irruptus gave English irrupt (1805).[3] It survives in Italian irrompere and Spanish irrumpir.[1]

Timeline

  • 86/82 BC – the Rhetorica ad Herennium uses it.[2][5]
  • 81–43 BC – Cicero uses it of troops and intruders.[2][5]
  • c. 50 BC – Caesar uses it of breaking into a camp.[6][5]
  • 1805 – English irrupt is recorded.[3]

Meanings

Verb

  1. To burst into, break in.[2]
  2. To rush on (the enemy).[2]
  3. To intrude, trespass.[2]
  4. To force a passage, penetrate.[2]

Word family

  • irruptiō

References

  1. ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  3. ^ a b c Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  4. ^ de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
  5. ^ a b c d Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  6. ^ a b Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
  7. ^ Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
Cite this entry

“Irrumpo.” Etymologically, 16 Oct. 2026, etymologically.com/la/irrumpo. Accessed 17 Oct. 2026.

Last edited on . ·