An Etymological Dictionary of the German Language/Annotated/Rauch

by Friedrich Kluge

Rauch, masculine, from the equivalent Middle High German rouch, Old High German rauh (hh), masculine, ‘smoke, steam’; corresponding to Old Saxon rôk, masculine, Dutch rook, Anglo-Saxon rêc (from Gothic *rauki), masculine, English reek, Old Icelandic reykr, masculine, ‘smoke’; Gothic *rauks (rauki-) is by chance not recorded. The common Teutonic is connected by gradation with the Teutonic root rū̆k, ‘to smoke,’ See riechen.