köken: Onomatopoeic. Possibly from Middle High German brūsen + -io (frequentative), from Old High German *brūsen, from Proto-Germanic *brausijaną (“to break; crack; crackle”).
köken: Iterative form of skalla (compare Swedish klappra, Danish klapre), verbal derivative of skall (“clatter”). Inherited from Old Swedish skaldra f, to Old Swedish skald, skal (“clatter”). Old West Norse equivelants are Old Norse skjalla and skella but as secondary senses. Cognate with Danish skaldre, Norwegian skaldre (“rattle”), dialectal German schällern, schallern.
clatter, rattle, clank; a clear repetitive sound such as one caused by hitting a metallic object or bone-dry solid wood, lower in pitch than kilinä but higher than kolina