Where does “icewell” come from?

icewell (English) comes from English well, from Middle English wellen, from Old English weallan, from Proto-Germanic wallaną, from Proto-Indo-European wēlH-, from Proto-Indo-European welH- — to turn, to wind.

Ancestry of “icewell”, step by step

icewell traces back through two separate lines of ancestry.

via English well

StepLanguageWordMeaning
1EnglishwellAccurately, competently, satisfactorily;...
2Middle Englishwellento boil, to bubble
3Old Englishweallanto well
4Proto-Germanicwallanąto well up, spring out, bubble forth
5Proto-Indo-EuropeanwēlH-to roll, to undulate
6Proto-Indo-EuropeanwelH-to turn, to wind

via English ice

StepLanguageWordMeaning
1EnglishiceWater in frozen form; Any frozen volatile...
2Middle Englishisice; That which is short-lived like ice; icy...
3Old Englishīsice
4Proto-West Germanicīsice
5Proto-Germanicīsąice
6Proto-Indo-Europeanh₁eyH-ice, frost
Every word from Proto-Indo-European welH-Every word from Proto-Indo-European wēlH-Every word from Proto-Germanic wallaną