An Etymological Dictionary of the German Language/Annotated/rauch

by Friedrich Kluge

rauch, adjective, ‘rough, hairy’; equivalent to rauh; Rauchwerk, ‘furs, skins’ (Middle High German rûchwërc) contains Modern High German rauh, ‘hairy, covered with hair’; Rauchhandel (Modern High German only), ‘trade in furs, furred skins.’