An Etymological Dictionary of the German Language/Annotated/Treppe
Appearance
Treppe, feminine, ‘stairs, staircase,’ from Middle High German (Middle German) tręppe, trappe, masculine and feminine, ‘stairs, step’; corresponding to Dutch trap. This word (for which Stiege occurs in Upper German) belongs to the cognates of trappen (see under trampeln), which are likewise of Middle German and Low German origin; the High German form (of the 16th and 17th centuries) is properly Trepfe.