Dopp kit

Q From Wiley: What does the dopp in dopp kit (shaving bag) mean, and where did the term originate?

A I am indebted to the American Dialect Society, and in particular to Jim Rader, for the answer to this question, which otherwise I couldn’t find in any of my reference books. The word Dopp is a registered trade mark of a man’s toiletry kit. It was designed by Jerome Harris for his uncle Charles Doppelt, a German immigrant to Chicago in the early 1900s. So it’s presumably an abbreviated form of Mr Doppelt’s family name. The word became widely known during the Second World War when GIs were issued Dopp kits. The company was purchased by Samsonite in the early seventies.