Rein (German) comes from Middle High German reine, from Old High German reini, from Proto-West Germanic hrainī, from Proto-Germanic hrainiz, from Proto-Indo-European króy-n-is, from Proto-Indo-European krey- — to sift, separate, divide.
Rein (German): pure, clear, plain
Definitions
pure, clear, plain
Ancestry of “Rein”, step by step
Rein traces back through two separate lines of ancestry.