Ruckus

google

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late 19th century: perhaps related to ruction and rumpus.

wiktionary

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Recorded since 1890; probably a blend of ruction(“disturbance”) +‎ rumpus(“disturbance, fracas”).

etymonline

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ruckus (n.)

"uproar, disturbance, commotion," 1890, American English, possibly a blend of ruction and rumpus.