Summer works well, and I have heard
Sunny used independently. It could actually be a nn for any name, in the sense of a nickname not needing to sound similar to the given name. If you prefer to stay with the same initial,
Sonia,
Sophia and
Sophie are all favourites of mine.
Sarah and
Seraphina are lovely, too. I don't know why some word names get accepted, but not others.
Rose,
Lily, etc are popular, but
Daffodil is rare, even though it has a sound that is similar to
Daphne, which many of us adore.
Marigold is unusual, but usable. It just seems to be a case of social norms.
This message was edited 5/24/2017, 4:45 AM