Where does “spiraltrappa” come from?

spiraltrappa (Swedish) comes from Swedish trappa, from Middle Low German trappe, from Old Saxon *trappa, from Proto-West Germanic *trappā — staircase, stairs.

spiraltrappa (Swedish): a spiral staircase

Definitions

  1. a spiral staircase

Ancestry of “spiraltrappa”, step by step

spiraltrappa traces back through two separate lines of ancestry.

via Swedish trappa

StepLanguageWordMeaning
1Swedishtrappastairs, stairway
2Middle Low Germantrappestair, step
3Old Saxon*trappa—
4Proto-West Germanic*trappāstaircase, stairs

via Swedish spiral

StepLanguageWordMeaning
1Swedishspirala spiral
Every word from Proto-West Germanic *trappā →Every word from Old Saxon *trappa →Every word from Middle Low German trappe →