backwind

verb

1. To deflect air into the back of a sail or of a vessel

   “If a sailing boat's bow is pointing too high into the wind the sails backwind.”

2. (transitive)To wind backwards.

   “This works because tape packs with equal diameters also have equal circumferences, therefore the distance the tape on each deck travels when backwound from the edit point is the same.”

noun

1. The flow of air so deflected