名詞 luff:

1. (nautical) the forward edge of a fore-and-aft sail that is next to the mast
2. the act of sailing close to the wind

動詞 luff:

1. sail close to the wind
   同義詞：point
2. flap when the wind is blowing equally on both sides

1. Luff the helm!
   轉(zhuǎn)舵向風(fēng)！

luff

n.（名詞）
Nautical
【航海】
The act of sailing closer into the wind.
搶風(fēng)行駛：向風(fēng)里駛得更近的行動
The forward side of a fore-and-aft sail.
縱帆前緣：縱帆的前面部分
Archaic The fullest part of the bow of a ship.
【古語】 （古）船首彎曲的部分
v.（動詞）
luffed,luff.ing,luffs
v.intr.Nautical （不及物動詞）【航?！?/i>
To steer a sailing vessel closer into the wind, especially with the sails flapping.
搶風(fēng)駛帆：把船航向更接近風(fēng)里，尤指船帆同時(shí)張開
To flap while losing wind. Used of a sail.
無風(fēng)張帆：無風(fēng)時(shí)張帆。用于航海
v.tr.（及物動詞）
Nautical To sail (a vessel, such as a yacht) closer into the wind during a race so as to prevent an opponent`s craft from passing on the windward side.
【航?！?/i> 搶到對手的上風(fēng)那一邊：在賽艇時(shí)把（船只，比如游艇）駛向上風(fēng)方向以避免對手的船駛到順風(fēng)邊上
To raise or lower (the boom of a crane or derrick).
升降：使起重機(jī)的吊臂上升或下降

來源：
Middle English lof [spar holding out the windward tack of a square sail]
中古英語 lof [阻止橫帆順風(fēng)搶風(fēng)行駛的桅桿]
from Old French
源自 古法語
[probably of Germanic origin]
[可能源于日耳曼語]