upwind

up- +‎ wind

upwind (comparative more upwind, superlative most upwind)

1. exposed to the wind

upwind (comparative more upwind, superlative most upwind)

1. in the direction from which the wind is blowing

• downwind

From Middle English upwinden, equivalent to up- +‎ wind (verb).

upwind (third-person singular simple present upwinds, present participle upwinding, simple past and past participle upwound)

1. (transitive, archaic) To wind upwards.
   • William Jay Smith, The Tempest

     The cries of all on board were drowned in wind,
     And wind in thunder drowned;
     With useless sails upwound.

2. (transitive, archaic) To wind up (a mechanism).
   • Charlotte Mary Yonge, The Disturbing Element, Or, Chronicles of the Blue-Bell Society

     Tell me not of a huge machine, / Going like a clock upwound; / All measured out each space between, / Marked out each weary round.

• wind up, wind-up, windup