Adelisa ([name]Ada[/name], [name]Addy[/name])
[name]Albertina[/name] ([name]Bess[/name], [name]Bettie[/name], [name]Ally[/name], [name]Albie[/name])
Amarinta ([name]Amy[/name], [name]Mary[/name], [name]Rina[/name])
[name]Amarantha[/name] ([name]Amy[/name], [name]Annie[/name], [name]Mari[/name])
Amphilis/ Amphelice / Amphelicia (Flissy, Lissy, [name]Amy[/name])
[name]Antonella[/name] ([name]Nell[/name], [name]Annie[/name])
[name]Antonina[/name] ([name]Annie[/name], [name]Nina[/name])
[name]Ariadne[/name] ([name]Ada[/name], [name]Addie[/name])
[name]Artemisia[/name] ([name]Mimi[/name], [name]Missie[/name])
Belina ([name]Bella[/name], [name]Binnie[/name])
[name]Benedetta[/name] ([name]Bennie[/name], [name]Bettie[/name])
[name]Bernadette[/name] ([name]Bernie[/name], [name]Bettie[/name], [name]Bennie[/name], [name]Nadie[/name])
[name]Bethsabee[/name] ([name]Beth[/name], [name]Bess[/name])
Bersaba / Bersabie ([name]Bess[/name])
[name]Berenice[/name] ([name]Bess[/name], Reenie)
[name]Berenike[/name] -‘beh-[name]REN[/name]-ee-kay’ in original Greek prn
[name]Calanthe[/name] ([name]Calla[/name], [name]Annie[/name])
[name]Camilla[/name] ([name]Millie[/name], [name]Cammie[/name], [name]Callie[/name])
[name]Cassiopeia[/name] ([name]Cassie[/name], [name]Cassia[/name], [name]Pia[/name])
[name]Cecilia[/name] ([name]Celia[/name], Cici, Cessy)
Celestria – this was used in Medieval times
[name]Celestina[/name] ([name]Celia[/name], Cici, Cessy, [name]Lessie[/name])
[name]Christabel[/name] ([name]Chrissy[/name], [name]Bella[/name])
Chrysanthe ([name]Chrissy[/name], [name]Annie[/name])
[name]Clemence[/name] ([name]Clemmy[/name])
[name]Clarissa[/name] ([name]Clara[/name], Lissy)
[name]Constance[/name] ([name]Connie[/name], Cossie)
[name]Constantia[/name] / [name]Constancia[/name] ([name]Connie[/name], Cossie, [name]Cassia[/name])
[name]Constanza[/name] ([name]Connie[/name], Cossie, [name]Cassia[/name])
[name]Cordelia[/name] ([name]Cordie[/name], [name]Della[/name], [name]Cora[/name])
[name]Corinna[/name] ([name]Rina[/name], [name]Cora[/name])
[name]Cornelia[/name] ([name]Cora[/name], [name]Nell[/name])
[name]Cressida[/name] ([name]Cressie[/name])
[name]Delphine[/name] ([name]Della[/name], Phina, [name]Fifi[/name])
[name]Demelza[/name] ([name]Mellie[/name], Demmie)
[name]Demetria[/name] ([name]Mimi[/name], Demmie)
Endelyn ([name]Della[/name], [name]Ellie[/name], [name]Enna[/name])
[name]Eulalia[/name] (Lalie, [name]Ellie[/name])
Eumelia ([name]Mellie[/name], [name]Ellie[/name])
[name]Eugenie[/name]/a ([name]Genie[/name], [name]Euna[/name]/[name]Una[/name])
[name]Euphemia[/name] ([name]Emmie[/name], Femmie)
Euthalia ([name]Ellie[/name])
[name]Felicia[/name] (Lissy)
[name]Florentia[/name]/[name]Florencia[/name] ([name]Flora[/name], [name]Flo[/name], [name]Flossie[/name], Reenie)
[name]Florentina[/name] ([name]Flora[/name], [name]Flo[/name], [name]Flossie[/name], Reenie)
[name]Galiena[/name] ([name]Lena[/name])
[name]Geraldine[/name] ([name]Gerry[/name], [name]Della[/name], [name]Dina[/name])
[name]Graciela[/name] ([name]Gracie[/name])
[name]Guinevere[/name] (Guin, [name]Gwen[/name], [name]Vera[/name], [name]Neve[/name])
[name]Gwendolen[/name] ([name]Gwen[/name], [name]Winnie[/name])
[name]Gweniver[/name] ([name]Gwen[/name], [name]Vivi[/name])
[name]Henrietta[/name] ([name]Hettie[/name], [name]Etta[/name])
[name]Henriette[/name] ([name]Hettie[/name], [name]Etta[/name])
[name]Hestia[/name] ([name]Hettie[/name])
[name]Hyacinthe[/name] ([name]Cinthy[/name])
[name]Iphigenia[/name] ([name]Genie[/name], [name]Ina[/name])
[name]Iphigenie[/name] ([name]Genie[/name], [name]Ina[/name])
[name]Jacquetta[/name] ([name]Ettie[/name], [name]Etta[/name], Jaqui)
[name]Jocasta[/name] ([name]Cassie[/name])
[name]Lavinia[/name] ([name]Livvy[/name], [name]Vina[/name])
[name]Leocadia[/name] ([name]Leda[/name], [name]Cady[/name], Liddy)
[name]Lieselotte[/name] ([name]Lottie[/name])
Loveday (Lowdy, [name]Vivi[/name], Liddy)-- popular in Medieval times
Lowenna (Wenna, Wennie, [name]Lena[/name])
Lysandra (Lissy, [name]Annie[/name])
Mabena (Beena, [name]Mena[/name])
Marcelline (Celly, [name]Lina[/name])
[name]Marjorie[/name]/ [name]Margery[/name] ([name]Marge[/name], [name]Mary[/name], [name]Marie[/name])
[name]Melisande[/name] (Lissy, [name]Lissa[/name])
Merewen (Wenna, [name]Merry[/name])
[name]Minerva[/name] ([name]Minnie[/name], [name]Vera[/name])
[name]Mirabel[/name] ([name]Mira[/name], [name]Bella[/name], [name]Millie[/name])
[name]Morwenna[/name] (Wenna, Mennie, [name]Morrie[/name])
[name]Octavia[/name] ([name]Vivi[/name], [name]Ottie[/name])
[name]Ophelia[/name] (Fellie)
[name]Parthenia[/name] ([name]Penny[/name])
[name]Parthenope[/name] ([name]Penny[/name], [name]Poppy[/name])
[name]Perdita[/name] ([name]Perdie[/name], [name]Perry[/name])
[name]Perpetua[/name] ([name]Perry[/name])
[name]Philomena[/name] ([name]Mena[/name], [name]Millie[/name])
[name]Savina[/name] ([name]Vivi[/name], [name]Vina[/name])
Serephina (Sephie, [name]Sera[/name], Phina)
Sowenna (Wenna, Wennie)
[name]Sybilla[/name] ([name]Sybil[/name])
[name]Veronique[/name] ([name]Vera[/name], [name]Ronnie[/name])
[name]Violetta[/name] ([name]Vivi[/name], [name]Lettie[/name])
[name]Winifred[/name] ([name]Winnie[/name])
I’ve put a mix of ancient/classical, medieval and vintage 
All the ‘Eu’ names ([name]Eulalia[/name], Eumelia, Euthalia, [name]Eugenie[/name]) and [name]Iphigenia[/name] stick out to me most as the best fit. I think they’re lovely. Though [name]Calanthe[/name] nn [name]Calla[/name] is closest to [name]Cassia[/name] I think.