I came up with this definition when correcting one of my many typos.
Amcestry: The American branches of the family tree.
Sorry I forgot to note down a source for this. Was it your suggestion?
Relativity : the study of relatives (a synonym for Genealogy)
Relatives – 1963
Deshamification – Destroying or concealing evidence of an ancestor’s disgraceful behavior, such as membership in the Hitler Youth, participation in “midget tossing,” or voting for Warren G. Harding.
Geneaitis: Genealogy addiction that is contagious.