a warm, dry wind blowing down into the valleys of a mountain, esp. in the Alps
Origin of foehnGerman dialect, dialectal föhn from Middle High German phönne from Old High German fonno from Late Latin an unverified form faunjo from Classical Latin Favonius, west wind: see favonian
A warm dry wind coming off the lee slopes of a mountain range, especially off the northern slopes of the Alps.
Origin of foehnGerman Föhn from Middle High German fœnne from Old High German phōno from Vulgar Latin faōnius from Latin favōnius the west wind from favēre to be favorable