Haustür (German) comes from German haus, from Middle High German hūs, from Old High German hūs, from Proto-West Germanic hūs, from Proto-Germanic hūsą, from Proto-Indo-European (s)kewH- — to cover, bedeck; cover.
Haustür (German): front door; doorstep, threshold
Definitions
front door; doorstep, threshold
Ancestry of “Haustür”, step by step
Haustür traces back through two separate lines of ancestry.