I don’t expect to get one definite answer here, but Google can’t give me one either. Some websites say they’re your second cousin, and others say they’re your first cousin once removed. I’m trying to figure out some family tree stuff so I need to know the difference between the (groups of) terms.

    • Lost_My_Mind@lemmy.world
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      1 month ago

      Holy shit…I always thought the phrase “second cousin twice removed” meant they were your cousin’s cousin on the other side of their family, and the twice removed meant they did something awful, was removed from the family. Then was forgiven, brought back into the family, and fucked up again. So now they’re your second cousin…twice removed.

      • t_378@lemmy.one
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        1 month ago

        “He was my fourth cousin, thrice removed. He just couldn’t stay away from the bottle and started many brawls at the reunions, baptisms, and funerals.”

    • onyxjet@lemmy.world
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      1 month ago

      Ah so second cousins are in the same generation. I have two first cousins twice removed (children of grandparents sibling) who I always though were second cousins. Now I get the term. If either of them have children, those would be second cousins.

      • AA5B@lemmy.world
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        1 month ago

        Yeah this was always confusing to me because my Dads cousins were closer in age to me, so “second cousin” always seemed to make sense.

    • t_378@lemmy.one
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      1 month ago

      This is a phenomenal resource! In all my years, I haven’t actually heard anyone say “once removed” in story telling. I would almost feel weird saying it, despite it being technically correct. It’s like saying “whom” out loud, you might be right, but people start mocking you.

      Yes I need better coworkers, what are you gonna do…

      • XeroxCool@lemmy.world
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        The only story telling I’ve heard it used was A Series of Unfortunate Events. Pretty sure each caretaker gets a cousin designation. But that, of course, is entirely fiction in an excessively diverse, rich, bodacious literary presentation filled to the brim with grimly austere vernacular from the Vocabulary For Defiants.

  • BlameThePeacock
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    1 month ago

    First, Second, Third Cousins have to do with how far up the tree you have to go to find a common ancestor. So someone with the same grandparent as you is your first cousin, someone with the same great grandparent is your second cousin, etc.

    Once, twice, thrice removed is how far down they are in relation to your generation. So if someone is your cousin, and that cousin has a child, they would be the same type of cousin but once removed.

    • JusticeForPorygon@lemmy.worldOP
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      1 month ago

      Thank you for the description, that actually makes it a lot easier to understand.

      So how do you go about combining the two?

      For example, my great grandfather’s sister’s grandson was on the USS Thresher when it imploded. What would his relation be to me?

      On that note, what do you call your grandparent’s sibling, vs your great grandparent’s sibling, and so on? Again, Google isn’t being very helpful here.

      • entropicdrift@lemmy.sdf.org
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        1 month ago

        For example, my great grandfather’s sister’s grandson was on the USS Thresher when it imploded. What would his relation be to me?

        So your first common ancestors are your great great grandparents, so that’s third cousin, and they’re a generation older than you, so once removed. Third cousin once removed. EDIT: This was incorrect, it’s second cousin once removed since that person would be OP’s parent’s second cousin. See the replies below.

        On that note, what do you call your grandparent’s sibling, vs your great grandparent’s sibling, and so on? Again, Google isn’t being very helpful here.

        Grandparents’ siblings are you great aunts/great uncles, additional generations back you add more greats, so great grandparents’ siblings are your great great aunt/uncle. After a while people say “twice great” etc

        • bobagem@sh.itjust.works
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          1 month ago

          So your first common ancestors are your great great grandparents, so that’s third cousin, and they’re a generation older than you, so once removed. Third cousin once removed.

          I believe that the answer is second cousin once removed.

          I believe you need to count the distance to the common ancestor from the older generation of the two people being related.

          I agree that the first common ancestor is OP’s great-great-grandparent. But only OP’s relation’s great-grandparent. So OP’s parent and OP’s relation are second cousins.

          Then the removed takes you down the tree from OP’s parent to OP.

          • entropicdrift@lemmy.sdf.org
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            1 month ago

            Ah, you’re completely right.

            If that person had a kid it’d be your third cousin, but since that person is OP’s parents’ second cousin, they are OP’s second cousin once removed.

      • Nefara@lemmy.world
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        1 month ago

        Your grandmother’s sister is your grandaunt, and you use grand and great the same way you do for mother/father but with aunt/uncle.

        So I think your fourth cousin twice removed was on the Thresher but someone may correct me.

      • Paraneoptera@sopuli.xyz
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        1 month ago

        Great grandfather’s sister’s grandson is your second cousin once removed. That guy is the second cousin of one of your parents because they share great grandparents with one of your parents. A grandparent’s sibling is a great aunt or great uncle to you. A great grandparent’s sibling is a great great uncle or great great aunt to you.

    • AmidFuror@fedia.io
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      That someone needs to share both grandparents or both great grandparents. Otherwise they are you half first cousin or half second cousin, like you would have half siblings if you shared only one parent with them.

      And then there are double cousins…

  • Swordgeek
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    1 month ago

    First cousin, once removed.

    For the record, ‘once removed’ refers to the generation. Your cousin’s grandkid would be your first cousin twice removed.

    • 11111one11111@lemmy.world
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      I have tons of actual 2nd cousins. From a small town and giant family.

      It always seemed weird calling my first cousins once removed “2nd” cousins when my actual 2nd cousins are so much further relation. My first cousins were more sibling than cousin so their kids call me uncle and they were as good as niece and nephew until my only brother started pumping out crotch fruit of his own. That knocked everyone down a notch lol.

  • JackbyDev@programming.dev
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    Your first cousin’s child is your first cousin once removed. The only reason anyone calls it anything else is because the terminology is confusing and they misunderstand it. Your child and your first cousin’s child will be second cousins.

  • spittingimage@lemmy.world
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    I have several first cousins I’d like to have removed. But I’ve always known their kids as my second cousins.

  • AbouBenAdhem@lemmy.world
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    1 month ago

    First cousin once removed.

    Maybe the websites saying “second cousin” are actually talking about the children of two first cousins?