The Collaborative International Dictionary of English v.0.48:

Upwind \Up*wind"\, v. t.
   To wind up. --Spenser.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Up-wind \Up"-wind`\, adv.
   Against the wind; toward the direction from which the wind is
   blowing.
   [Webster 1913 Suppl. +PJC]

The Collaborative International Dictionary of English v.0.48:

upwind \up"wind`\, a.
   being or moving in the direction from which the wind is
   blowing.
   [PJC]

WordNet (r) 3.0 (2006):

upwind
    adv 1: toward the wind; "they were sailing leeward" [syn:
           leeward, upwind] [ant: downwind, windward]
    2: in the direction opposite to the direction the wind is
       blowing; "they flew upwind" [syn: upwind, against the
       wind, into the wind] [ant: downwind]
    adj 1: towards the side exposed to wind [syn: upwind,
           weather(a)]

Moby Thesaurus II by Grady Ward, 1.0:

51 Moby Thesaurus words for "upwind":
   alee, alight, arise, ascend, aweather, come down, come in, come up,
   crash-land, curl upwards, descend, ditch, downwind, go up, grow up,
   land, leeward, level off, levitate, light, loom, mount, overshoot,
   pancake, rear, rear up, rise, rise up, settle down, spiral, spire,
   stand up, surge, swarm up, sweep up, talk down, to leeward,
   to windward, touch down, tower, up, upgo, upgrow, upheave, uprise,
   upspin, upstream, upsurge, upswarm, weatherward, windward