[name_m]Hi[/name_m] berries,
After a massive revamp to my lists (both master list and combinations), I realised just how many names I like that are similar. As in so similar that they coudn’t be siblings.
Some examples of this are:
[name_u]Ailbhe[/name_u], [name_f]Alba[/name_f], [name_f]Elke[/name_f], [name_f]Isla[/name_f] and [name_f]Orla[/name_f].
[name_m]Percival[/name_m], [name_u]Percy[/name_u] and [name_f]Persephone[/name_f].
[name_f]Do[/name_f] you have any instances like this?
Oh yeah, happens all the time.
[name_m]Leo[/name_m] / [name_m]Leonard[/name_m] / [name_m]Leonardo[/name_m]
[name_m]Leonard[/name_m] / [name_m]Lennon[/name_m]
[name_m]Isaac[/name_m] / [name_m]Isaiah[/name_m]
[name_f]Alessandra[/name_f] / [name_f]Alexandra[/name_f]
[name_u]Jean[/name_u] / [name_u]Joan[/name_u]
[name_f]Ginny[/name_f] / [name_f]Gemma[/name_f]
Pretty much all of my girl’s names are like this: [name_f]Alba[/name_f], [name_f]Willa[/name_f], [name_f]Mila[/name_f], [name_f]Leah[/name_f], [name_f]Thea[/name_f], [name_f]Zinnia[/name_f], [name_f]India[/name_f], etc. The way I see it is I’ll just stick to what I have/like and if I should ever have to name a second child (after using a name from my list) you all will be here to help me sort it out. 
I’ve got loads! Especially with girls I tend to like names with similar endings/sounds.
[name_f]Evanthe[/name_f] / [name_f]Evadne[/name_f] / [name_f]Ariadne[/name_f]
[name_f]Parthenope[/name_f] / [name_f]Persephone[/name_f]
[name_f]Pandora[/name_f] / [name_f]Aurora[/name_f] / [name_f]Eudora[/name_f] / [name_f]Adora[/name_f] / Saphora (the list goes on)
Rowenna / Lowenna / Sowenna / [name_f]Enna[/name_f] etc.
[name_m]Leonardo[/name_m] / [name_m]Leonidas[/name_m] / [name_m]Leonides[/name_m]
[name_m]Lysander[/name_m] / [name_m]Evander[/name_m]
[name_m]Artemus[/name_m] / [name_m]Perseus[/name_m] / [name_m]Daedalus[/name_m] / [name_m]Amadeus[/name_m] etc.
[name_m]Horatio[/name_m] / [name_m]Valencio[/name_m] / [name_m]Benicio[/name_m] (plus other -o names)
[name_m]Benedict[/name_m] / [name_m]Bennett[/name_m] / [name_m]Benoit[/name_m] / [name_m]Benicio[/name_m]
I have both [name_u]Charlie[/name_u] (boy) and [name_f]Coralie[/name_f] in my top 10 lists. I am not against siblings sharing letters but these two names are way too close.
[name_m]Isaac[/name_m] and [name_m]Isaiah[/name_m]
[name_m]Jeremiah[/name_m] and [name_m]Jedediah[/name_m]
[name_m]Thaddeus[/name_m] and [name_m]Theodore[/name_m]
[name_m]Leo[/name_m]/ [name_u]Theo[/name_u]
[name_f]Nellie[/name_f]/ [name_f]Hattie[/name_f]/ [name_f]Letty[/name_f]
[name_u]Everly[/name_u]/ [name_u]Waverly[/name_u]
[name_m]Wyatt[/name_m]/ [name_u]Emmett[/name_u]/ [name_u]Everett[/name_u]
[name_u]August[/name_u]/ [name_m]Augustus[/name_m]/ [name_f]Augusta[/name_f]
[name_m]Edmund[/name_m] and [name_f]Rosamund[/name_f] is the one that upsets me most. I absolutely love both but could never use them together. I think [name_f]Rosamund[/name_f] will have to be a middle name. Another is [name_f]Annamaria[/name_f], which is a family name that I would love to use, thus ruling out [name_f]Roxanne[/name_f], [name_f]Rosanna[/name_f], [name_f]Joanna[/name_f], [name_f]Susannah[/name_f], [name_f]Marianne[/name_f], [name_f]Anneliese[/name_f], [name_f]Mary[/name_f], [name_f]Marina[/name_f], [name_f]Mariposa[/name_f], [name_u]Marian[/name_u], Mariamne, [name_m]Marius[/name_m], Marinus, the list goes on and on.
Also:
[name_m]Edmund[/name_m]/[name_f]Theodora[/name_f] (my favourite nn for both is [name_u]Teddy[/name_u])
[name_m]Wilfred[/name_m]/[name_u]Willoughby[/name_u]
[name_m]Caspian[/name_m]/[name_m]Casper[/name_m]/[name_f]Cassandra[/name_f]/[name_m]Jasper[/name_m] (also probably [name_m]Lucas[/name_m])
[name_u]Asa[/name_u]/[name_f]Ada[/name_f]
[name_m]Leander[/name_m]/[name_f]Lenora[/name_f]/[name_f]Leonora[/name_f]
[name_f]Lydia[/name_f]/[name_f]Sylvia[/name_f]
[name_f]Agnes[/name_f]/[name_f]Agatha[/name_f]
[name_f]Alba[/name_f]/[name_f]Aphra[/name_f]/[name_f]Ada[/name_f]/[name_f]Anna[/name_f]
Lowenna/[name_f]Morwenna[/name_f]
[name_m]Nathaniel[/name_m]/[name_m]Daniel[/name_m]/[name_m]Gabriel[/name_m]/[name_m]Samuel[/name_m]
I’m sure there are more but this is all I can think of for now.
So many. The only set that really, really bothers me is [name_f]Selah[/name_f] and [name_f]Willa[/name_f]. These are my top two girl names and if I use one I have to give up the other. 
Which I have complained about in many threads here on NB, but it still bothers me!