Where does “Zehnfußkrebs” come from?

Zehnfußkrebs (German) comes from German fuß, from Middle High German vuoȥ, from Old High German fuoȥ, from Proto-West Germanic fōt, from Proto-Germanic fōts, from Proto-Indo-European pṓds, from Proto-Indo-European póds, from Proto-Indo-European ped- — to walk, to step; to stumble, to fall.

Zehnfußkrebs (German): Any member of the Decapoda or decapods, an order of crustaceans within the class Malacostraca, including crabs, lobsters, crayfish, shrimp, and prawns

Definitions

Any member of the Decapoda or decapods, an order of crustaceans within the class Malacostraca, including crabs, lobsters, crayfish, shrimp, and prawns

Ancestry of “Zehnfußkrebs”, step by step

Zehnfußkrebs traces back through 3 separate lines of ancestry.

via German fuß

Step	Language	Word	Meaning
1	German	fuß	foot
2	Middle High German	vuoȥ	a foot
3	Old High German	fuoȥ	foot
4	Proto-West Germanic	fōt	foot
5	Proto-Germanic	fōts	foot
6	Proto-Indo-European	pṓds	foot
7	Proto-Indo-European	póds	foot
8	Proto-Indo-European	ped-	to walk, to step; to stumble, to fall

via Translingual Decapoda

Step	Language	Word	Meaning
1	Translingual	Decapoda	order
2	Translingual	Decapodiformes	superorder, the ten-limbed cephalopods}}
3	Translingual	-iformes	—
4	Latin	-fōrmis	having the form of; -shaped
5	Latin	fōrma	form; figure, shape, appearance
6	Etruscan	morma	—
7	Ancient Greek	μορφή	shape, form; appearance; outline

via German Krebs

Step	Language	Word	Meaning
1	German	Krebs	crab; cancer; Cancer
2	Middle High German	krebz	—
3	Old High German	krebiz	edible crustacean, crab
4	Proto-West Germanic	krabit	crustacean
5	Proto-Germanic	krabitaz	crustacean
6	Proto-Indo-European	grebʰ-	—
7	Proto-Indo-European	ger-	to turn, bend, twist, wind; to tie, bind...

Every word from Proto-Indo-European ped- →Every word from Proto-Indo-European póds →Every word from Proto-Indo-European pṓds →