Ma'anar ƙamus na "eau de cologne" wani nau'in turare ne ko ƙamshi mai ƙamshi wanda yawanci ana yin shi daga cakuda man citrus, kamar lemun tsami, bergamot, da orange, gauraye da barasa da ruwa. Kalmar "eau de cologne" ta samo asali ne daga harshen Faransanci kuma an fassara shi zuwa "ruwa daga Cologne," wani birni a Jamus inda wani turaren Italiya Giovanni Maria Farina ya fara samar da irin wannan turare a karni na 18.