Where does “rulletrapp” come from?

rulletrapp (Norwegian Bokmål) comes from Norwegian Bokmål trapp, from Middle Low German trappe, from Old Saxon *trappa, from Proto-West Germanic *trappā — staircase, stairs.

rulletrapp (Norwegian Bokmål): an escalator

Definitions

  1. an escalator

Ancestry of “rulletrapp”, step by step

rulletrapp traces back through two separate lines of ancestry.

via Norwegian Bokmål trapp

StepLanguageWordMeaning
1Norwegian Bokmåltrappstairs, stairway, staircase, steps
2Middle Low Germantrappestair, step
3Old Saxon*trappa
4Proto-West Germanic*trappāstaircase, stairs

via Norwegian Bokmål rulle

StepLanguageWordMeaning
1Norwegian Bokmålrulleto roll
Every word from Proto-West Germanic *trappāEvery word from Old Saxon *trappaEvery word from Middle Low German trappe
rulletrapp — Etymology, Origin & Word History | Etymology Explorer