jettison

Concise Oxford English Dictionary © 2008 Oxford University Press:
jettison /ˈdʒɛtɪs(ə)n, -z(ə)n/

▶verb

• 1 throw or drop from an aircraft or ship.

• 2 abandon or discard.

▶noun the action of jettisoning.

– origin ME: from OFr. getaison, from L. jactatio(n-), from jactare (see jet1).