Where does “scranc” come from?

scranc (Old High German) comes from Proto-Germanic skrankaz, from Proto-Indo-European (s)ḱer- — dung, manure, filth; manure, dung, filth.

Ancestry of “scranc”, step by step

Step	Language	Word	Meaning
1	Proto-Germanic	skrankaz	barrier; grid, barrier
2	Proto-Indo-European	(s)ḱer-	dung, manure, filth; manure, dung, filth

scranc — Etymology, Origin & Word History | Etymology Explorer