I know a lot of nicknames end in y or ie. I know a sibling set that is Annie, Chloe, and Rudy. I'm not sure how planned out that was. At least they aren't all spelled with a Y ending.
Some nicknames you plan others not so much. I have two kids that have nicknames but neither of them have a y sounded ending.
I guess I don't want to sound like I have a Tommy Timmy Jimmy kimmy. For sure for boys I think it just sounds like a baby or toddler name.
I have a Gabrielle who has been called Gabby. I liked her name because it had so many possible nicknames like Bri or Brielle, Ellie etc Unsure how often nicknames change throughput life because Gabby seems to be sticking.
We are expecting again. Our boy name isn't an issue with me but we are planning to do Josephine if we have a girl. I imagine we would likely call her Josie? I suppose Jo could be a nickname although there is a Jill in the family it may be hard to distinguish. One of the name sites had Fifi as a nickname for Josephine which might be fun but I imagine would have to be intentional. Curious what your thoughts on a nicknames for our possible Josephine? Also it is likely my last name will end up being a nickname for all of our kids at one point in their lives or another...