Jettison

/ˈdʒɛt.ɪ.sən/ verb medium

To discard something no longer wanted or needed, often to lighten a load.

The airline jettisoned its unprofitable regional routes to focus on international flights.

Memory Trick

Jettison sounds like 'jet-is-on' — a jet dumps fuel and cargo mid-flight to stay light and airborne.