First Cousins Once Removed (via Fabulous Adventures In Coding) (via @chipschipschips) This article discusses the kinship terminology specifically with regards to nth cousins mth removed.  It hurt a bit to understand it, but the picture care of Wikipedia helps to explain it graphically if you can’t get your head around the math. There are two things that bother me about this lexicon: The first is that you have grandparents, but their siblings are your great-uncles and -aunts instead of your grand-uncles and aunts and subsequent ancestral aunts and uncles are a degree of greatness more than your (great-*)?grandparents. Later in the Wiki article it suggests that grand and great are interchangeable at the first instance, so you can get around having one more degree of greatness for your ancestral aunts and uncles by substituting the final great for grand. The second thing is the nth cousins mth removed thing applies to both the higher and lower generations which introduces ambiguity between whether the removedness is in the direction of the older or younger generations.  One commenter on the original article mentioned they add ‘upwards’ and ‘downwards’ to remove the ambiguity, but if you can have great-aunts and -uncles I don’t see why you can’t have nth aunts/uncles mth removed as well to identify the upper generations of relatives.

First Cousins Once Removed (via Fabulous Adventures In Coding) (via @chipschipschips)

This article discusses the kinship terminology specifically with regards to nth cousins mth removed.  It hurt a bit to understand it, but the picture care of Wikipedia helps to explain it graphically if you can’t get your head around the math.

There are two things that bother me about this lexicon:

The first is that you have grandparents, but their siblings are your great-uncles and -aunts instead of your grand-uncles and aunts and subsequent ancestral aunts and uncles are a degree of greatness more than your (great-*)?grandparents.

Later in the Wiki article it suggests that grand and great are interchangeable at the first instance, so you can get around having one more degree of greatness for your ancestral aunts and uncles by substituting the final great for grand.

The second thing is the nth cousins mth removed thing applies to both the higher and lower generations which introduces ambiguity between whether the removedness is in the direction of the older or younger generations.  One commenter on the original article mentioned they add ‘upwards’ and ‘downwards’ to remove the ambiguity, but if you can have great-aunts and -uncles I don’t see why you can’t have nth aunts/uncles mth removed as well to identify the upper generations of relatives.