Where does “glans” come from?

glans (Swedish) comes from Middle High German glanz, from Old High German glanz, from Proto-Germanic *glantaz, from Proto-Germanic gʰlond-o-, from Proto-Indo-European ǵʰlend- — to shine; sparkle; look.

glans (Swedish): gleam, sparkle, glitter, gloss, luster; splendor,...