Cologne water: Eau de Cologne. Cologne is a major German city on the Rhine. The toilet “water” in question is made by adding aromatic oils to alcohol. It was first produced commercially in Cologne, and no fewer than three companies there claim to being the originator. Ledbetter (184) says Cologne water is now made in France by descendants of its creator. By tradition Cologne water is dabbed on the face or waved under the nose of any lady who has fainted. For an exhaustive treatise on its composition, see The Encyclopedia Americana (105) or Bradley (48).