Decamp is a verb that means to depart suddenly or secretly.

The French word decamper (doo com PAY) was imported into English in the 17th century, holding on to its original meaning of ‘to break camp’ or ‘take off’ quickly and quietly. Here’s an example:

The group of concert goer decided to decamp soon after rain began to fall around ten. As much as Californians love music, they don’t care much for rain.