The wiki on uncle includes a chart that says that your grandparents brother is your Granduncle although some may be referred to as great uncles. I don’t believe I’ve ever heard the term Granduncle or Grandaunt for that matter.
As an amateur genealogist, I prefer the term ‘grand’ over great as prefix for aunt/uncle, as it makes things conform with grandfather/mother terminology. This way, my great grandfather and my great granduncle are of the same generation.
According to genealogists, great-aunt is then supposed to be used for relatives who are three generations older than you or more. So, your great-grandmother or great-grandfather’s sister is your great-aunt.
This sounds like the way “aunt” (or “auntie”) is used in certain cultures to mean “any non-lineal, non-sibling female relative older than yourself.”
Long ago I wondered why there wasn’t such a term as grand uncle or grand aunt, just to make things symmetrical with grandfathers and grandmothers. That way, I figured, nobody got the “great” prefix unless they were three generations up from you.
I’m surprised to read here that there actually is such a term. Never, in my whole life, have I heard it used in speech.
(P.S. Due to a niece who married young and whose kids and grandkids did the same, plus the fact that he lived to age 100, my father was a great-great-great-uncle when he died. He couldn’t have been a great-great-great grandfather, though.)
Growing up in a “grand-aunt” (or more precisely “gran-aunt”) dialect, the term “great-aunt” seemed like something that a posh English person might use, for example a character in an Oscar Wilde play.
I’ve also never heard grandaunt/uncle used, although I would happily accept the usage if it were adopted by my siblings’ grandchildren. It’s much less confusing.
My great-uncle Charlie and great-aunt Rose were much older than my grandmother, and when I was a kid I was amazed and confused to find out they were all of the same generation.
No, it doesn’t say great aunt is supposed to be used for any female relative three generations or more older than you. The entire page is about the differences between “great aunts” and “grand aunts” and it specifically says
A grand-aunt is the name that should be given to the sister of a person’s grandparent, indicating that they are the first generation of an aunt or uncle beyond your parent’s siblings.
According to genealogists, great-aunt is then supposed to be used for relatives who are three generations older than you or more. So, your great-grandmother or great-grandfather’s sister is your great-aunt
“Grand” and “Great” specifically apply to siblings of grandparents and great-grandparents. They wouldn’t apply to the children of those people - the child of my grand-aunt is my first cousin once removed and the child of my great-aunt is my first cousin twice removed.
The way “aunt” or “uncle” is used in certain cultures means that you call cousins older than you “aunt” or “uncle” (and sometimes completely unrelated people ) so in those cultures, I would most likely call my grand-aunt’s daughter “aunt” although she’s actually a cousin.
By the standards of that article, your grandfather’s father should be called your greatfather. No, “great” doesn’t mean “three generations removed”. “Great grand” means “three generations removed”.
I was watching the Miyazaki film “The Boy and the Heron” on Netflix and I noticed that the English subtitles use the term “Granduncle” and “Great-granduncle” to refer to one of the characters. Checking the Wikipedia page, I see the character is consistently referred to as “Granduncle”. The Boy and the Heron - Wikipedia