Where does “Gummistiefel” come from?

Gummistiefel (German) comes from German Stiefel, from Old French estival, from Latin aestivālis, from Latin aestīvus, from Latin autumnus, from Latin auctumnus, from Proto-Indo-European h₃ewǵ- — cold.

Gummistiefel (German): Wellington boots UK, wellies UK, galoshes US, rubber boots US, rainboots

Definitions

Wellington boots UK, wellies UK, galoshes US, rubber boots US, rainboots

Ancestry of “Gummistiefel”, step by step

Gummistiefel traces back through two separate lines of ancestry.

via German Stiefel

Step	Language	Word	Meaning
1	German	Stiefel	boot
2	Old French	estival	—
3	Latin	aestivālis	summer
4	Latin	aestīvus	summer
5	Latin	autumnus	autumn, fall; autumn; autumnal
6	Latin	auctumnus	autumn; autumn; autumnal
7	Proto-Indo-European	h₃ewǵ-	cold

via German Gummi

Step	Language	Word	Meaning
1	German	Gummi	rubber, gum; rubber band, elastic band; condom,...
2	Latin	cummi	Alternative form of cummis
3	Ancient Greek	κόμμι	gum, obtained from babul
4	Egyptian	qmy	anointing oil

Every word from Proto-Indo-European h₃ewǵ- →