Where does “slū-” come from?

slū- (Proto-Germanic) comes from Proto-Indo-European (s)lew- — to sludge, to wash; loose, limp, flabby; limp,...

Ancestry of “slū-”, step by step

Step	Language	Word	Meaning
1	Proto-Indo-European	(s)lew-	to sludge, to wash; loose, limp, flabby; limp,...