Where does “lusk” come from?

lusk (English) comes from Middle English lusk, from Old English lox, from Proto-West Germanic *luhs, from Proto-Germanic luhsaz, from Proto-Indo-European lewḱ-, from Proto-Indo-European lewk- — bright; to shine; to see.

lusk (English): lazy or slothful; full; ripe; a lazy or slothful...