Yngvarr (Old Norse) comes from Old Norse herr, from Proto-Norse ᚺᚨᚱᛃᚨ, 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 “Yngvarr”, step by step
Yngvarr traces back through 3 separate lines of ancestry.