Where does “tikarappuset” come from?

tikarappuset (Finnish) comes from Finnish rappunen, from Finnish rappu, from Finnish trappu, from Swedish trappa, from Middle Low German trappe, from Old Saxon *trappa, from Proto-West Germanic *trappā — staircase, stairs.

Ancestry of “tikarappuset”, step by step

tikarappuset traces back through two separate lines of ancestry.

via Finnish rappunen

StepLanguageWordMeaning
1Finnishrappunen(single) stair, step
2Finnishrappustairstep; section of an apartment building...
3Finnishtrappu—
4Swedishtrappastairs, stairway
5Middle Low Germantrappestair, step
6Old Saxon*trappa—
7Proto-West Germanic*trappāstaircase, stairs

via Finnish tikkaat

StepLanguageWordMeaning
1Finnishtikkaatladder; Second-person singular indicative present...
2Finnishtikasladder; rung of a ladder
3Old Swedishstighi—
Every word from Proto-West Germanic *trappā →Every word from Old Saxon *trappa →Every word from Middle Low German trappe →