I know about that removing stuff, when my generation became "grand" or "great" my kids got once removed, and I was offended on their behalf. They had done nothing wrong!
Also, goods and chattels don't alliterate like the other examples above...
I thought kith were the people you knew, and kin those to whom you were related.
I wouldn't have thought that "kin" was a rare term but at a funeral on my kids' side of the family, one of my niblings didn't know how to answer the question "who are you kin to?" when asked by an old country lady that I didn't know how she was kin, if at all, anyway.
Nibling, in case it isn't clear, is the gender-neutral term for niece or nephew.
Ah, interesting about Tide. Now All is clear!