downwind

The compound word "downwind" is a native English formation, combining two Old English elements. "Down" originates from the Old English "dūn," related to a hill or descent, and evolved to signify direction. "Wind" comes from the Old English "wind," of Germanic origin, from a Proto-Indo-European root meaning "to blow." The compound's logic is transparent and literal: it describes the direction "down" or along the path of the "wind." This spatial metaphor, where the wind's flow is conceptualized as a path to follow, directly leads to its modern navigational and meteorological meanings, indicating a position or movement aligned with the wind's current.

Structure: down (direction) + wind (air movement) - down: Old English. A preposition/adverb indicating direction from a higher to a lower position or along a course. - wind: Old English. A noun referring to the natural movement of air.