irruption (n.)youdaoicibaDictYouDict[irruption 词源字典]
1570s, from Middle French irruption or directly from Latin irruptionem (nominative irruptio) "a breaking in, bursting in, invasion," noun of action from past participle stem of irrumpere, from assimilated form of in- "into, in, on, upon" (see in- (2)) + rumpere (see rupture (n.)). Frequently confused with eruption.[irruption etymology, irruption origin, 英语词源]