@kaneidae
We actually can kind of reconstruct a fair few Proto-Indo-European names, the ancestors of most white Europeans, Iranian peoples and North Indian peoples.
Tewtéh, Kléwos, Wésu, Hnēr, Yóhrokléwos, Hrēgs, Rēgīokartos, Kortos, Bhurisravas are just a few names.