Source : Webster's Revised Unabridged Dictionary (1913)

Loof \Loof\, v. i. (Naut.)
   See {Luff}.

Loof \Loof\, n. (Bot.)
   The spongelike fibers of the fruit of a cucurbitaceous plant
   ({Luffa [AE]gyptiaca}); called also {vegetable sponge}.

Loof \Loof\, n. [See {Luff}.] [Also written {luff}.] (Naut.)
   (a) Formerly, some appurtenance of a vessel which was used in
       changing her course; -- probably a large paddle put over
       the lee bow to help bring her head nearer to the wind.
   (b) The part of a ship's side where the planking begins to
       curve toward bow and stern.