Where does “unsloping” come from?

unsloping (English) comes from English sloping, from English slope, from English aslope, from Middle English aslope.

unsloping (English): Not sloping

Definitions

  1. Not sloping

Ancestry of “unsloping”, step by step

unsloping traces back through two separate lines of ancestry.

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

via English un

StepLanguageWordMeaning
1EnglishunOne
Every word from Middle English aslope