my wifes family always used granny and gramps so thats what we are known as when you get to the "great" state is GG as the women outlive the men at that point ....if i live to that point i guess ill find out but none of the men in either of our families have made that landmark , in my family i referred to mine [after he was gone] as great grandfather [last name] i was told by grandfather [last name] that we do that out of respect , both would cringe at my grandkids calling me gramps , i know he would think that i was not getting the respect i deserved , he was a bit touchy on respect - my parents were mother and father , but my grandmother [last name] let us call the mom and dad , my kids respect me and have told me of the appreciation for how they grew up , they always got that from me and i always got that from them , been two of the very best things that ever happened to me in this life ,
however since the kids were part of the family before i was i respect their custom in spite of how i was raised and i think i could explain to my elders if they were available ....my kids did call my father "grandfather" because that was how they were introduced - there were no greats left alive at that point on my side ,
there was only one great left in my lifetime and i was way too young to remember what we were told to call her when she passed i was 4 my brother was 2 ,
this is an interesting topic as i dont know what all my kids call their grands on the other side but ive overheard pa pa , grand pa pa etc a few tomes out of the grand kids ,
its been further complicated by my sons remarriage as we added two more grand kids , i have no idea what they use , but this has been a step forward in our lives as those two grandkids are fantastic kids , ive been very blessed in this part of life