Where does “Einārs” come from?

Einārs (Latvian) comes from Old Norse Einarr, from Proto-Germanic harjaz, from Proto-Indo-European kóryos, from Proto-Indo-European ḱer-, from Proto-Indo-European kr̥-, from Proto-Indo-European ker- — army.

Ancestry of “Einārs”, step by step

Step	Language	Word	Meaning
1	Old Norse	Einarr	—
2	Proto-Germanic	harjaz	army; army leader; commander; warrior
3	Proto-Indo-European	kóryos	war; troops; army; war, troops
4	Proto-Indo-European	ḱer-	to grow, to make grow, to nourish; to plait,...
5	Proto-Indo-European	kr̥-	to turn, to bend
6	Proto-Indo-European	ker-	army

Every word from Proto-Indo-European ker- →Every word from Proto-Indo-European kr̥- →Every word from Proto-Indo-European ḱer- →