I actually adore the name [name_f]Edna[/name_f] whole-heartedly. I think it’s overlooked and easily dismissed, when really, it fits into the current trend of short, snappy, spunky sounding names ([name_f]Aria[/name_f], [name_f]Lola[/name_f], [name_f]Cora[/name_f], [name_f]Nora[/name_f], [name_f]Stella[/name_f]) and vintage names ([name_f]Amelia[/name_f], [name_f]Lillian[/name_f], [name_u]Evelyn[/name_u], [name_f]Eleanor[/name_f], [name_f]Alice[/name_f], etc).
Not to mention, there were 91 little [name_f]Edna[/name_f]'s (I believe) registered in the US last year, and another 9 in [name_f]England[/name_f] and [name_m]Wales[/name_m], so it IS in fact being used, quite steadily in the US (it often sits between 75 and 100 births per year).
I have [name_f]Edna[/name_f] [name_f]Lucille[/name_f] on my list, but I also like:
[name_f]Edna[/name_f] [name_f]Josephine[/name_f]
[name_f]Edna[/name_f] [name_f]Lillian[/name_f]
[name_f]Edna[/name_f] [name_f]Catherine[/name_f]
[name_f]Edna[/name_f] [name_f]Lily[/name_f]
[name_f]Edna[/name_f] [name_f]Poppy[/name_f]
[name_f]Edna[/name_f] [name_f]Mary[/name_f]
[name_f]Edna[/name_f] [name_f]May[/name_f]
[name_f]Edna[/name_f] [name_f]Tulip[/name_f]
[name_f]Edna[/name_f] [name_f]Amelia[/name_f]
[name_f]Edna[/name_f] [name_f]Lucy[/name_f]
[name_f]Edna[/name_f] [name_f]Hazel[/name_f]
[name_f]Edna[/name_f] [name_f]Iris[/name_f]
[name_f]Edna[/name_f] [name_f]Charlotte[/name_f]
and if you want [name_f]Edna[/name_f] _____ [name_f]Rose[/name_f], how about:
[name_f]Edna[/name_f] [name_f]Charlotte[/name_f] [name_f]Rose[/name_f]
[name_f]Edna[/name_f] [name_f]Catherine[/name_f] [name_f]Rose[/name_f]
[name_f]Edna[/name_f] [name_f]Amelia[/name_f] [name_f]Rose[/name_f]
[name_f]Edna[/name_f] [name_f]Lucy[/name_f] [name_f]Rose[/name_f]
I recommend a more current, feminine middle name, but I don’t see why you couldn’t use [name_f]Edna[/name_f] on it’s own, it’s not intended to be a nickname for anything, and there are very, very few (if any), names that it could work as a nickname for.
I would just use [name_f]Edna[/name_f], personally
Especially when you have a connection to it!