The Collaborative International Dictionary of English v.0.48:

Closehauled \Close"hauled`\, close-hauled \close-hauled\, a.
   (Naut.)
   Under way and moving as nearly as possible toward the
   direction from which the wind blows; having the sails trimmed
   for sailing as close to the wind as possible; -- said of a
   sailing vessel.
   [1913 Webster] close-knit