Deboard

Part of speech: verb

Definitions

1. To leave a ship, aircraft, or other vessel by walking off or down from it
2. To exit and step away from a vehicle such as a plane or boat
3. To go ashore or descend from a craft after arriving at a destination

Etymology: "Deboard" is a plain formation: the prefix "de-" added to "board," meaning to get off a ship, aircraft, train, or bus. The prefix comes from Latin "de," meaning "down from" or "away from," which passed into English through French and carries the sense of removing or reversing an action. "Board" itself descends from Old English "bord," meaning a plank or side of a ship, and in the sense of boarding a vessel it gained its nautical meaning long before it applied to trains or planes. The verb's modern pairing with "de-" follows the same logic as "disembark," which uses a different prefix for the same sense. Both words describe leaving a conveyance, so the pattern makes the meaning transparent even to speakers who have never seen the word before.

Synonyms: disembark, deplane, alight

Antonyms: board, embark