Sverige (Swedish) comes from Swedish rike, from Old Norse ríki, from Proto-Germanic rīkiją, from Proto-Germanic rīks, from Proto-Celtic rīxs, from Proto-Indo-European h₃rḗǵs, from Proto-Indo-European h₃reǵ- — to straighten, to right oneself; right; just.
Ancestry of “Sverige”, step by step
Sverige traces back through 3 separate lines of ancestry.