— decampment , n.
/di kamp"/ , v.i.
1. to depart from a camp; to pack up equipment and leave a camping ground: We decamped before the rain began.
2. to depart quickly, secretly, or unceremoniously: The band of thieves decamped in the night.
[ 1670-80; décamper, equiv. to dé- DIS- 1 + camper to encamp; see CAMP 1 ]