Where does “hæri” come from?
hæri (Old Swedish) comes from Old Norse heri, from Proto-Germanic hezô, from Proto-Germanic hasô, from Proto-Germanic haswaz, from Proto-Indo-European ḱeh₂s- — to lead, teach, educate; grey, hare.
Ancestry of “hæri”, step by step
hæri traces back through two separate lines of ancestry.