Great or Grand

[Gadget]

Replace second link with

https://www.ancestry.com/corporate/blog/great-and-grand-aunts/

However there are lots of info on it if Google is used

EVen Wiki:

A great-aunt[1][2]/grandaunt[3] (sometimes written grand-aunt[4]) is the sister of one's grandparent. Despite the popular usage of great-aunt, genealogists consider it more correct to use grandaunt for a grandparent's sister to avoid confusion with earlier generations. Similarly, the female siblings of one's great-grandparents are referred to as great-grandaunts.[5]

Add - link https://en.wikipedia.org/wiki/Aunt

[arthurk]

Grand is definitely the correct term whatever 

https://www.familytreemagazine.com/names/aunts-and-uncles-grand-not-great/

Although there's a certain logic to 'grand-uncle' and 'grand-aunt', and I can appreciate that in some academic fields it may be preferable for terms to be used consistently across different countries, I have never used these terms myself, and rarely - if ever - heard anyone else do so.

They have been in use for a long time, but the OED has examples of 'great-uncle' and 'great-aunt' going back even further. It notes that the 'grand-' forms are much less common than the 'great-' forms, though commoner in Irish English than in most other varieties.

The question here might be to what extent we allow ourselves to be swayed by those who seek to define what is "correct" by means of arbitrary rules while taking little or no account of historical or common (and in the UK at least, predominant) usage. However reputable Yankee Publishing may be, I don't intend to meekly allow one of their writers to dictate how I should use the English language on this side of the Atlantic.
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[Gadget]

Arthur

The correct genealogical and kinship term in our society is Grand.  We may use great but that is wrong.  Grand is used for those uncles and aunts who are of the same generation as out Grandparents.


Gadget

[panda40]

I am a great aunt to my two great nieces. I don’t feel old enough to be referred to as great aunt let alone a grand aunt. Does that mean they are my grand nieces now?
I must admit I can see the logic but it doesn’t sound right. I will stick to what I have always called my relatives.
Regards
Panda

[arthurk]

And I must go and edit my FH program so that it has railroad laborers, marriage licenses, Durham County and various other alternate terms.

[Sloe Gin]

We don't say "great-father", so why do we say "great-aunt"?

Don't you find it's too easy to make a mistake if you stick with "great" instead of "grand".
Too easy to assume that great-great grandfather and great-great aunt are the same generation.

If you call them great-great grandfather and great grandaunt, it's much more obvious that they are not the same generation - because the same generation has the same number of greats.

[arthurk]

Personally I don't find it a problem - just count the number of 'gr-' words.

[emmygee]

One upside of Ancestry's change is that the sister of my 2nd great-grandmother is now my 2nd great-grandaunt, whereas before she was my 3rd great-aunt. See the attached diagram.

[Guy Etchells]

What the American system (circa 1820-30) discounts is that the older British system (circa 1650-1660) is counting through the steps of the relationship not the generations.

There are only 2 steps to a grandparent, i.e. subject to parent 1st step, parent to grandparent 2nd step.
There are also 2 steps to an aunt or uncle, i.e. subject to parent 1st step, parent to sibling (aunt,uncle), 2nd step. In other words the term Aunt or Uncle replaces the term Grand.

The next step (3rd step) logically is therefore the greats; great grandfather, great grandmother, great uncle, great aunt.

In addition DNA (centimorgan chart ) has actually displayed the British system is the more correct way of describing such relationships.

Cheers
Guy