Etymograph

English

irruption

Irruption comes from Middle French irruption, from Latin irrumpō ‘to intrude’, and ultimately from Proto-Indo-European *Hrewp- ‘to break, tear (up)’.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*Hrewp-1‘to break, tear (up)’reconstructed
  2. Proto-Indo-Europeanc. 4500–2500 BCE*Hrunépti1‘to be breaking’reconstructed
  3. Latinc. 75 BCE–200 CErumpō1‘to break’
  4. Latinc. 75 BCE–200 CEirrumpō2‘to intrude’
  5. Latinc. 75 BCE–200 CEirruptio3
  6. Middle Frenchc. 1400–1600irruption3
  7. Englishearliest quotation 1748irruption3

attested reconstructed ? uncertain or disputed deepest recorded ancestor

  1. 1 Wiktionary, Latin irrumpo
  2. 2 Wiktionary, Latin irruptio
  3. 3 Wiktionary, English irruption
  4. Earliest quotation in Wiktionary’s entry: 1748, Tobias Smollett, The Adventures of Roderick Random. […] In Two Volumes.: “[I]t was not till arts and ſciences began to…”.

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*Hrewp-Wiktionary, Latin irrumpo‘to break, tear (up)’reconstructed
  2. Proto-Indo-Europeanc. 4500–2500 BCE*HrunéptiWiktionary, Latin irrumpo‘to be breaking’reconstructed
  3. Latinc. 75 BCE–200 CErumpōWiktionary, Latin irrumpo‘to break’
  4. Latinc. 75 BCE–200 CEirrumpōWiktionary, Latin irruptio‘to intrude’
  5. Latinc. 75 BCE–200 CEirruptioWiktionary, English irruption
  6. Middle Frenchc. 1400–1600irruptionWiktionary, English irruption
  7. Englishearliest quotation 1748irruptionWiktionary, English irruption. Earliest quotation in Wiktionary’s entry: 1748, Tobias Smollett, The Adventures of Roderick Random. […] In Two Volumes.: “[I]t was not till arts and ſciences began to…”

Linked words

through Proto-Indo-European *Hrewp- ‘to break, tear (up)’

route, rob, robbery, rover, robe, reaver, 21 more

through Proto-Indo-European *Hrunépti ‘to be breaking’

corruption, 5 more

through Latin rumpō ‘to break’

corrupt, rout, disrupt, rupture, eruption, erupt, 9 more

Today it means

noun The action of irrupting or breaking into; a violent entry or invasion; an inbreaking; an intrusion.

Sources

Sources: Wiktionary, “irruption”; the older steps come from the Wiktionary entries for Latin irrumpo, Latin irruptio. By Wiktionary contributors, CC BY-SA 4.0, via kaikki.org (dump of Oct 3 2026); text adapted and restructured. Language periods are conventional ranges, not dates for this word. License.

Etymograph / Proto-Indo-European *Hrewp- / irruption

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