Where does “downsloping” come from?

downsloping (English) comes from English Down, from Middle English doun, from Old English dūn, from Proto-Germanic *dūnā, from Proto-Celtic dūnom, from Proto-Indo-European dʰewh₂- — smoke; mist, haze.

downsloping (English): Sloping downward; Air descending a slope,...

Definitions

  1. Sloping downward; Air descending a slope,...

Ancestry of “downsloping”, step by step

downsloping traces back through two separate lines of ancestry.

via English Down

StepLanguageWordMeaning
1EnglishDownusually known as County Down
2Middle Englishdoundown
3Old Englishdūnhill, down; hill, dune; hill, mountain
4Proto-Germanic*dūnā—
5Proto-Celticdūnomstronghold, rampart
6Proto-Indo-Europeandʰewh₂-smoke; mist, haze

via English sloping

StepLanguageWordMeaning
1EnglishslopingHaving a slope; present participle of slope; An...
2EnglishslopeAn area of ground that tends evenly upward or...
3EnglishaslopeSlanted or sloping; In an unintended or...
4Middle Englishaslope—
Every word from Proto-Indo-European dʰewh₂- →