board

• n. 板；甲板；食事
• vt.（飛行機、車、船などに）乗り込む；板で覆う；板を与える
• vi.
• n. （板）人の名前；（英、仏）Bord.

PIE *bherdh（切る）から。最終的な語源はbreakと同じかもしれない。そして、boardからboard, board, boarding, embarkationなどの意味が派生する。

board

board: [OE] Old English bord had a wide range of meanings, whose two main strands (‘plank’ and ‘border, side of a ship’) reveal that it came from two distinct sources: Germanic *bortham and *borthaz respectively (despite their similarity, they have not been shown to be the same word). Related forms in other Germanic languages that point up the dichotomy are Dutch bord ‘shelf’ and boord ‘border, side of a ship’.

The second, ‘edge’ element of board (which is probably related to border) now survives in English only in seaboard (literally the ‘edge of the sea’) and in variations on the phrase on board ship (whose original reference to the ship’s sides is nowadays perceived as relating to the deck). Board ‘food’ (as in ‘board and lodging’), and hence boarder, are metaphorical applications of board ‘table’.
=> border

board (n.1)

Old English bord "a plank, flat surface," from Proto-Germanic *burdam (cognates: Old Norse bore "plank," Dutch bord "board," Gothic fotu-baurd "foot-stool," German Brett "plank"), from PIE *bhrdh- "board," from root *bherdh- "to cut." See also board (n.2), with which this is so confused as practically to form one word (if indeed they were not the same word all along).

A board is thinner than a plank, and generally less than 2.5 inches thick. The transferred meaning "food" (late 14c.) is an extension of the late Old English sense of "table" (compare boarder, boarding); hence, also, above board "honest, open" (1610s). A further extension is to "table where council is held" (1570s), then transferred to "leadership council, council (that meets at a table)," 1610s.

board (n.2)

"side of ship," Old English bord "border, rim, ship's side," from Proto-Germanic *bordaz (cognates: Old Saxon bord, Dutch boord, German Bord, Old High German bart, Old Norse bare), perhaps from the same source as board (n.1), but not all sources accept this. Connected to border; see also starboard.

If not etymologically related to board (n.1), the two forms represented in English by these words were nonetheless confused at an early date in most Germanic languages, a situation made worse in English because this Germanic root also was adopted as Medieval Latin bordus (source of Italian and Spanish bordo). It also entered Old French as bort "beam, board, plank; side of a ship" (12c., Modern French bord), either from Medieval Latin or Frankish, and from thence it came over with the Normans to mingle with its native cousins. By now the senses are inextricably tangled. Some etymology dictionaries treat them as having been the same word all along.

board (v.)

verb senses derived from various senses of board (n.1) and board (n.2) include "come alongside" (a ship), mid-15c. (from n.2); "put boards on, frame with boards," late 14c. (implied in boarded, from n.1); " to get onto" (a ship), 1590s, transferred from mid-19c. to stages, railway cars, aircraft, etc. (from n.2). Meaning "to be supplied with food and lodging" is from 1550s (from n.1 in transferred sense). Transitive meaning "provide with daily meals and lodging" is from 1590s. Related: Boarded; boarding.

1. You get a big salary incentive and free board and lodging too.

あなたたちは大きな激励的な給料を得ることができて、また無料の食事と宿泊を楽しむことができます。