Yeah. I think the Blackfoot had several names for different bands or groups. I don’t remember the names either. It is interesting that a Blackfoot name was a reference to blood given that many have an rh factor. Ancient people seemed to understand many things that they did not have the science to understand. Just amazing.
Yeah. Think “blood brother”. And from the movies, picture the two warriors, each slicing his own palm and then shaking hands with each other. Where they looking for the blood to react in a certain way? Or maybe they were exchanging gravy recipes. “Is such a thing possible?” “Why yes, yes it is.”