aboard (English)

Where does "aboard" come from?

The English preposition 'aboard' arose from Middle English 'abord'[1], which was formed by combining the prefix 'a-', meaning 'on', with 'bord', meaning the exterior side of a ship[1][2]. The noun 'bord' traces back to Old English 'bord'[3], inherited from Proto-West Germanic '*bord' and earlier Proto-Germanic '*burdą'[4][6]. Originally referring to a physical plank or the hull edge of a vessel, the element combined into a phrase that developed into a term for being on or onto a ship, which later expanded to other modes of travel[1][2][5].

Open questions

The deeper origin of Proto-Germanic '*burdą' is uncertain, with competing proposals deriving it from Proto-Indo-European roots meaning 'tip, edge' or 'to strike, pierce'. [5]

Full etymology tree

aboard (English), 'On board of; onto or into a ship, boat, train, plane.'
- inherited abord (Middle English), 'On board; into or within a ship or boat'
  - prefix a- (Middle English)
  - affix bord (Middle English), 'A shield (board of protective armour).'
    - inherited bord (Old English), 'board, plank'
      - inherited *bord (Proto-West Germanic), 'board, plank'
        inherited *burdą (Proto-Germanic), 'board, plank'

Ancestors

abord (Middle English)

Sources

Updated October 2026

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Etymology data from Wiktionary, CC BY-SA 4.0 · About Miraris