unlaunch

verb

Etymology: From un- + launch.

1. To undo or reverse the launching of.

   “They pay a $5 fee for the season, and the permit gives them the privilege of launching their boats and unlaunching them at one of these ramps.”

   “In order to terminate the session, the client issues ServiceGatewayDetach to the gateway, which calls the application server to unlaunch the currently running service.”