junket

The word "junket" was Merriam-Webster's Word of the Day recently and it is an interesting origin story. I associate the word with two things:. Now, I think of it as a promotional trip paid for by someone else (such as a press junket for a film by actors). As a child, I thought of it only as a dessert that my mother used to make. 

Junket goes back a long way. A long time ago a basket made of rushes (marsh plants used in weaving and basketwork) comes from the Latin word for "rush" which is juncus. It was used in English as a borrowed word in several forms finally becoming "junket." The word was used in English to name not just the plant and the baskets made from the plant, but also a type of cream cheese made in rush baskets. 

Going back to the 15th century, you can find the word associated with desserts ranging from curds and cream to sweet confections including the one my mom made that is still available.  

By the 16th century, junket had come to mean "banquet" or "feast" as well. 

Perhaps, some of those junket events came to include the journey to them and so the word broadened its usage to apply to pleasure outings or trips, whether or not the food was a part of it.