Ancient comb in Germany has rune writing: Kama = comb
Oldest runes are 150AD, I think they correlate to Sumerian writing but only used on tree bark so not preseerved.
Compare kama/comb to Dutch kom/bowl, tum/dome = entomb/endom
see earlier post, komatic = innuit dog sled, cf atim = Cree dog/dragger
Dog domestication may have helped modern humans (AMH) to displace neanderthals:
and my comment about dog words: