Lúðrey (Old Norse) comes from Old Norse ey, from Proto-Norse *ᚨᚢᛃᚢ, from Proto-Germanic awjō, from Proto-Germanic agwjō, from Proto-Indo-European h₂ékʷeh₂ — water.
Ancestry of “Lúðrey”, step by step
Lúðrey traces back through two separate lines of ancestry.